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Fix BAD_SYSTEM_CONFIG_INFO error in Windows

If you encounter the BAD_SYSTEM_CONFIG_INFO Blue Screen error in your Windows 10 PC, then read on as this post will guide you in fixing this issue. Usually, this kind of Blue Screen error is caused by some issues with the Boot Configuration Data file. The main issue inside of the Boot Configuration Data file is that either some boot order files or older files might be in conflict with the newer ones or the stable ones and thus triggering the BAD SYSTEM CONFIG INFO Blue Screen error.

This kind of Stop error also indicates that there is an error in the Windows Registry which is why you need to update potential culprit drivers as well as edit some entries in the Registry if need be. But before you get started, make sure that you create a System Restore Point first. After creating a System Restore Point, try to boot your computer into Safe Mode and then restart your computer normally. However, if it doesn’t work, proceed to the given options below.

Option 1 – Run System Restore

Performing System Restore might help you in fixing the BAD SYSTEM CONFIG INFO Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

  • Tap the Win + R keys to open the Run dialog box.
  • After that, type in “sysdm.cpl” in the field and tap Enter.
  • Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
  • After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Option 2 – Update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

  • Open the Devices Manager from the Win X Menu.
  • Then locate the device drivers and right-click on them to open the Properties.
  • After that, switch to the Driver tab and click on the Uninstall Device button.
  • Follow the screen option to completely uninstall it.
  • Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer.

Option 3 – Try fixing the Windows Registry files

In order to fix the Windows Registry files, you need to make a bootable Windows 10 USB drive and then boot your PC using it. To do so, refer to the steps below.

  • Once you see the Welcome Screen, click on Next.
  • Then click on the “Repair your computer” option located on the bottom-left section of the window.
  • Next, click on Troubleshoot > Advanced Options > Command Prompt.
  • After opening Command Prompt, execute each one of the commands listed below in the sequence that they are given:
    • CD C:WindowsSystem32config
    • ren C:WindowsSystem32configDEFAULT DEFAULT.old
    • ren C:WindowsSystem32configSAM SAM.old
    • ren C:WindowsSystem32configSECURITY SECURITY.old
    • ren C:WindowsSystem32configSOFTWARE SOFTWARE.old
    • ren C:WindowsSystem32configSYSTEM SYSTEM.old
  • After executing the commands given above, type in the next ones below and make sure to execute them in the given sequence below.
    • copy C:WindowsSystem32configRegBackDEFAULT C:WindowsSystem32config
    • copy C:WindowsSystem32configRegBackSAM C:WindowsSystem32config
    • copy C:WindowsSystem32configRegBackSECURITY C:WindowsSystem32config
    • copy C:WindowsSystem32configRegBackSYSTEM C:WindowsSystem32config
    • copy C:WindowsSystem32configRegBackSOFTWARE C:WindowsSystem32config
  • Now type “exit” to close Command Prompt.
  • Restart your PC for the changes to take effect.

Option 4 – Run a Memory Check to test RAM

On the other hand, you can also fix the BAD SYSTEM CONFIG INFO Blue Screen error by running a Memory Check using the Windows Memory Diagnostic. Refer to these steps to do so.

  • Tap the Win + R keys to open the Run dialog box.
  • Then type “mdsched.exe” in the field and hit Enter to open the Windows Memory Diagnostic.
  • After that, the Windows Memory Diagnostic will give out two options such as:
  1. Restart now and check for problems (recommended)
  2. Check for problems the next time I start my computer
  • Select any of the given options. After that, your computer will restart and check for memory-based issues upon the restart. If there are any issues, it will automatically them.

Option 5 – Rebuild BCD files and repair MBR files

Like what you did on the third option above, you also have to make a bootable Windows 10 USB drive for this option and then boot your Windows 10 PC using it.

  • Once you get to the Welcome Screen part, click on Next.
  • Afterward, click on the Repair your computer option located on the bottom-left part of the window.
  • Then click on Troubleshoot.
  • Next, select the Advanced Options and then Command Prompt.
  • Once Command Prompt has been pulled up, enter each one of the following commands and in the sequence that they are given to rebuild BCD files and repair MBR files:
    • bootrec /repairbcd
    • bootrec /osscan
    • bootrec /repairmbr
  • Now type “exit” to close Command Prompt and then restart your computer to successfully apply the changes made.

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InternetSpeedTracker Removal Guide

InternetSpeedTracker is a browser extension developed by MindSpark Inc. This browser add-on offer uses tips on how to boost their “bad” internet connection speed. It displays false internet speed in order to get you to open the sponsored links listed in the toolbar.

This extension also hijacks your browser home page and replaces your default search engine with MyWay. While browsing the internet you will see additional unwanted sponsored ads and links throughout your search results, and sometimes even pop-up ads might appear. While active this extension gathers personal information, website visits, links, and clicks and uses this data to serve ads.

InternetSpeedTracker has been flagged as a Browser Hijacker by several anti-virus scanners, and due to its data mining behavior, it is not recommended to keep it on your computer, especially because it gives false data about your internet speed.

About Browser Hijackers

Browser hijack is a very common type of online fraud where your internet browser settings are modified to allow it to carry out things you don’t intend. They’re created to disrupt browser functions for several purposes. It redirects you to the sponsored sites and inserts ads on the web browser which helps its developer generate earnings. Nevertheless, it’s not that naive. Your web safety is jeopardized and it is also extremely irritating. They don’t just ruin your web browsers, but browser hijackers could also modify the computer registry, making your PC vulnerable to other attacks.

How one can know if your web browser is hijacked

Signs that an internet browser is a hi-jacked include: the browser’s home-page is modified; you find yourself regularly directed to a different site than the one you meant; the default search engine is changed; unwanted new toolbars are added to your web browser; never-ending pop-up ads show up and/or your browser pop-up blocker is disabled; your web browser starts running sluggishly or displays frequent glitches; You simply can’t access specific sites, particularly anti-virus sites.

How they infect PCs

A browser hijacker can be installed on your computer when you check out an infected website, click an e-mail attachment, or download something from a file-sharing website. They are usually included with toolbars, BHO, add-ons, plugins, or browser extensions. A browser hijacker could also be installed as a part of freeware, shareware, demoware, and fake programs. A good example of a notorious browser hijacker is the most recent Chinese malware known as “Fireball”, which has attacked 250 million computer systems worldwide. It acts as a hijacker but can be turned into a fully functioning malware downloader afterward. Browser hijackers could affect the user’s browsing experience greatly, keep track of the websites visited by users and steal private information, cause difficulty in connecting to the internet, and ultimately create stability issues, making software programs and systems freeze.

How to repair a browser hijack

Some hijackers could be removed by uninstalling the freeware they came with or by eliminating any extension you have recently added to your system. But, many hijackers are hard to get rid of manually. No matter how much you attempt to eliminate it, it can keep coming back over and over again. And there’s no denying the fact that the manual fixes and removal methods can be quite a complicated job for a rookie PC user. Furthermore, there are several risks connected with fiddling around with the system registry files.

What you can do if Virus Stops You From Downloading Anything?

Malware could cause all kinds of damage after they invade your system, ranging from stealing your private information to deleting data files on your computer system. Certain malware variants modify web browser settings by adding a proxy server or modify the computer’s DNS configuration settings. In such cases, you’ll be unable to visit some or all of the websites, and thus not able to download or install the necessary security software to remove the infection. If you’re reading this article, chances are you’re stuck with a virus infection that is preventing you to download or install the Safebytes Anti-Malware program on your PC. There are some fixes you can try to get around with this issue.

Install antivirus in Safe Mode with Networking

If the malware is set to load at Windows startup, then booting in Safe Mode should prevent it. Since only the minimal programs and services start-up in safe mode, there are rarely any reasons for issues to take place. Listed below are the steps you should follow to start your computer into the Safe Mode of your Windows XP, Vista, or 7 computers (visit Microsoft site for instructions on Windows 8 and 10 PCs). 1) At power on/start-up, tap the F8 key in one-second intervals. This will bring up the Advanced Boot Options menu. 2) Select Safe Mode with Networking with arrow keys and hit Enter. 3) As soon as this mode loads, you will have an internet connection. Now, utilize your web browser normally and navigate to https://safebytes.com/products/anti-malware/ to download and install Safebytes Anti-Malware. 4) Right after the software program is installed, let the diagnostic scan run to remove trojans and other malware automatically.

Switch to an alternate web browser

Web-based viruses can be environment-specific, aiming for a particular internet browser or attacking specific versions of the browser. The best solution to avoid this issue is to opt for a browser that is known for its security features. Firefox comprises built-in Phishing and Malware Protection to keep you safe online.

Run anti-virus from a pen drive

Another technique is to download and transfer an anti-malware application from a clean PC to run a scan on the affected computer. Follow these steps to use a flash drive to clean your infected system. 1) Download Safebytes Anti-Malware or Microsoft Windows Defender Offline onto a clean PC. 2) Insert the pen drive on the same system. 3) Double-click the Setup icon of the anti-malware software package to run the Installation Wizard. 4) Pick a USB flash drive as the place when the wizard asks you exactly where you would like to install the application. Follow the instructions on the computer screen to complete the installation process. 5) Now, transfer the pen drive to the infected computer. 6) Run the Safebytes Anti-malware directly from the thumb drive by double-clicking the icon. 7) Click the “Scan” button to run a full system scan and remove malware automatically.

Let's Talk About SafeBytes Anti-Malware!

Want to install the best anti-malware application for your laptop or computer? There are many applications available in the market which comes in free and paid versions for Windows computers. Some of them are great and some are scamware applications that pretend as legitimate anti-malware programs waiting to wreak havoc on your PC. When looking for an antimalware program, pick one which gives reliable, efficient, and total protection against all known viruses and malware. One of the recommended tools by industry leaders is SafeBytes Anti-Malware, the most dependable program for Windows computers. SafeBytes anti-malware is a reliable tool that not only secures your system permanently but is also quite user-friendly for people of all ability levels. This application could easily identify, remove, and protect your personal computer from the most advanced malware attacks such as spyware, adware, trojan horses, ransomware, worms, PUPs, and other possibly damaging software applications. SafeBytes has excellent features when compared to other anti-malware programs. Below are a few of the great ones: World-class AntiMalware Protection: Built upon a greatly acclaimed anti-virus engine, this malware removal application can identify and remove numerous obstinate malware threats such as browser hijackers, PUPs, and ransomware that other common antivirus applications will miss. Live Protection: SafeBytes gives real-time active supervision and protection from all known viruses and malware. They’re very effective in screening and eliminating different threats because they are regularly improved with new updates and alerts. Web Security: SafeBytes provides an instant safety rating on the web pages you are going to visit, automatically blocking risky sites and making sure that you are certain of your safety while browsing the internet. Very Low CPU and Memory Usage: SafeBytes provides complete protection from online threats at a fraction of the CPU load due to its enhanced detection engine and algorithms. Premium Support: SafeBytes provides 24/7 technical support, automatic maintenance, and updates for the best user experience.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove InternetSpeedTracker without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised.

The following files, folders, and registry entries are created or modified by InternetSpeedTracker

Files: C:DOCUME1USER1LOCALS1Tempnsk1.tmp C:b418207fbd4b466002312b66521c390947518e9a0d787e4e059af0505f607f3e C:DOCUME1USER1LOCALS1Tempnsk2.tmp C:DOCUME1USER1LOCALS1Tempnsk2.tmpnsDialogs.dll C:DOCUME1USER1LOCALS1Tempnsk2.tmpSystem.dll C:DOCUME1USER1LOCALS1Tempnsk2.tmpnsDialogs.dll C:DOCUME1USER1LOCALS1Tempnsk2.tmpSystem.dll C:Program FilesInternetSpeedTracker_9tEIInstallr.binNP9tEISb.dl_ C:PROGRA1INTERN2Installr.binNP9tEISb.dl_ C:Program FilesInternetSpeedTracker_9tEIInstallr.binNP9tEISb.dll C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEIPlug.dl_ C:PROGRA1INTERN2Installr.bintEIPlug.dl_ C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEIPlug.dll C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEZSETP.dl_ C:PROGRA1INTERN2Installr.bintEZSETP.dl_ C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEZSETP.dll C:WINDOWSsystem32rundll32.exe C:Program FilesInternetSpeedTracker_9tEIInstallr.binNP9tEISb.dl_ C:Program FilesInternetSpeedTracker_9tEIInstallr.binNP9tEISb.dll C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEIPlug.dl_ C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEIPlug.dll C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEZSETP.dl_ C:Program FilesInternetSpeedTracker_9tEIInstallr.bintEZSETP.dll Registry: HKLMSOFTWAREClassesInternetSpeedTracker_9t.HTMLMenu HKLMSOFTWAREClassesInternetSpeedTracker_9t.HTMLPanel HKLMSOFTWAREClassesInternetSpeedTracker_9t.SettingsPlugin HKLMSOFTWAREClassesInternetSpeedTracker_9t.ToolbarProtector HKLMSOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionexplorerBrowser Helper Objects9e28b297-11d4-4293-aa6f-558658ee66ae HKLMSOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionexplorerBrowser Helper Objectscc28794a-99d4-4b1b-bccf-b065ce5f9feb HKLMSOFTWAREWow6432NodeInternetSpeedTracker_9t HKLMSYSTEMControlSet001servicesInternetSpeedTracker_9tService HKLMSYSTEMCurrentControlSetservicesInternetSpeedTracker_9tService HKUS-1-5-21-1633355155-4214755471-2067616181-1000SoftwareAppDataLowSoftwareInternetSpeedTracker_9t HKLMSOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionRunInternet Speed Tracker EPM Support
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Removing FlightSearchApp from your computer

FlightSearchApp is a browser extension for Google Chrome. This extension claims to be a simple tool to provide updates regarding flight arrivals, flight departures, flight tracking, and access to time zone converters. However, it is a potentially unwanted program which is also known as a browser hijacker.

This extension hijacks your browser home page and search engine changing it to MyWay. While this extension is active you will see additional ads, sponsored links, and sometimes even pop-up ads appearing through your browsing sessions. It also keeps track of your browsing data, recording your browsing activity, website visits, clicks, and potentially personal information. It also adds a toolbar to the browser header which can lag the browser while also reducing usable screen size.

Several anti-virus scanners have marked this extension as a Browser Hijacker, and is therefore not recommended to keep on your computer.

About Browser Hijackers

Browser hijacking is regarded as the internet’s constant risk that targets web browsers. It is a kind of malicious software that alters your web browser’s configuration settings so that you are redirected to websites or webpages that you had no intention of visiting. Basically, nearly all browser hijackers are made for marketing or advertising purposes. The idea would be to force users to visit particular websites which are looking to improve their visitor traffic and produce higher ad earnings. It might appear naive, but the majority of such sites are not legitimate and will pose a serious threat to your on-line safety. Some browser hijackers are designed to make certain modifications beyond the web browsers, like changing entries in the computer registry and allowing other malware to further damage your PC.

How one can know whether the browser is hijacked?

Symptoms that your browser is hi-jacked include: 1. the browser’s homepage is changed 2. you see new unwanted favorites or bookmarks added, typically directed to ad-filled or pornography websites 3. The default search page of your web browser is altered 4. unsolicited new toolbars are added to your web browser 5. many pop-up ads show up and/or your browser pop-up blocker is disabled 6. your web browser has become unstable or starts running slowly 7. You can’t access particular websites, in particular anti-virus sites.

How it infects your PC

Browser hijackers can get into a computer by some means or other, for instance via file sharing, downloads, and email too. They are generally included with toolbars, add-ons, BHO, plugins or browser extensions. Some browser hijackers spread in user’s computer systems using a deceptive software distribution technique known as “bundling” (usually through freeware and shareware). Browser hijackers may record user keystrokes to collect potentially valuable information that leads to privacy issues, cause instability on computers, significantly disrupt user’s browsing experience, and finally slow down the computer to a point where it will become unusable.

Browser hijacker removal tips

Some types of browser hijackers can be quickly removed from your PC by uninstalling malicious programs or any other recently installed freeware. At times, it can be a challenging task to identify and eliminate the malicious component since the associated file could be running as part of the operating system process. On top of that, manual removal expects you to execute many time-consuming and intricate procedures that are very hard to carry out for new computer users. You might opt for automatic browser hijacker removal methods by just installing and running an efficient anti-malware program. One of the recommended tools for fixing browser hijacker infections is SafeBytes Anti-Malware. It assists you eliminate any pre-existing malicious software on your system and provides you real-time monitoring and protection against new threats. Utilize a system optimizer along with your anti-malware to fix various registry issues, remove computer vulnerabilities, and enhance your computer's overall performance.

Virus Blocking Internet And All Anti-Malware Software? Do This!

Every malware is bad and the degree of the damage will differ greatly with regards to the type of infection. Some malware is meant to interfere with or prevent things that you wish to do on your personal computer. It may not allow you to download anything from the net or prevent you from accessing a few or all of the websites, particularly the anti-malware websites. If you’re reading this now, you have perhaps realized that a malware infection is the real cause of your blocked internet traffic. So how to proceed if you want to download and install an anti-malware program like Safebytes? There are some solutions you could try to get around with this issue.

Download the application in Safe Mode with Networking

Safe Mode is a unique, simplified version of Windows in which just bare minimum services are loaded to prevent malware and other troublesome applications from loading. If the malware is set to load immediately when PC starts, switching into this mode can prevent it from doing so. To start the computer into Safe Mode, hit the “F8” key on your keyboard just before the Windows boot screen shows up; Or after normal Windows boot up, run MSConfig, check “Safe Boot” under Boot tab, and click Apply. Once you are in Safe Mode, you can attempt to download and install your antivirus program without the hindrance of the virus. After installation, run the malware scanner to remove standard infections.

Utilize an alternate web browser to download an anti-malware program

Some malware mainly targets specific browsers. If this is your situation, use another internet browser as it could circumvent the malware. The ideal solution to overcome this issue is to opt for a browser that is well known for its security measures. Firefox contains built-in Phishing and Malware Protection to help keep you secure online.

Run anti-virus from your pen drive

Another solution is to save and run an antivirus software program completely from a USB drive. Follow these steps to run the antivirus on the affected computer system. 1) Download the anti-malware software on a virus-free PC. 2) Plug the Thumb drive into the uninfected computer. 3) Double click on the downloaded file to open the installation wizard. 4) Select the USB stick as the location for saving the software file. Do as instructed on the computer screen to finish off the installation process. 5) Transfer the flash drive from the clean PC to the infected PC. 6) Double-click the anti-malware software EXE file on the USB flash drive. 7) Hit the “Scan” button to run a full system scan and remove malware automatically.

Features and Benefits of SafeBytes Anti-Malware

In order to protect your computer or laptop from many different internet-based threats, it is important to install anti-malware software on your computer. But with countless numbers of anti-malware companies out there, these days it is tough to decide which one you should buy for your PC. Some of them do a good job in getting rid of malware threats while some will damage your PC by themselves. When looking for an anti-malware tool, purchase one which gives dependable, efficient, and comprehensive protection against all known viruses and malware. Among few good programs, SafeBytes Anti-Malware is the highly recommended software program for the security-conscious user. SafeBytes anti-malware is a trustworthy tool that not only secures your system permanently but is also extremely easy to use for people of all ability levels. Through its cutting-edge technology, this software protects your personal computer against infections caused by different kinds of malware and other threats, including spyware, adware, viruses, worms, trojans, keyloggers, potentially unwanted programs (PUPs), and ransomware. SafeBytes anti-malware provides an array of enhanced features that sets it aside from all others. The following are a few of the great ones: World-class AntiMalware Protection: This deep-cleaning anti-malware application goes much deeper than most antivirus tools to clean out your PC. Its critically acclaimed virus engine finds and disables hard-to-remove malware that hides deep inside your computer. Real-time Threat Response: SafeBytes offers completely hands-free real-time protection and is set to check, block and get rid of all computer threats at its first encounter. It will regularly monitor your pc for hacker activity and also gives end-users sophisticated firewall protection. Safe Web Browsing: SafeBytes checks the links present on a webpage for possible threats and informs you whether the site is safe to visit or not, through its unique safety rating system. “Fast Scan” Features: Safebytes AntiMalware, with its advanced scanning engine, gives ultra fast scanning which can quickly target any active online threat. Minimal CPU Usage: SafeBytes is really a lightweight application. It use up a very small amount of processing power as it operates in the background so you are free to use your Windows-based PC the way you really want. 24/7 Online Support: You may get absolutely free 24/7 technical support from their IT experts on any product queries or computer security concerns. All in all, SafeBytes Anti-Malware is a solid program since it has plenty of features and can identify and eliminate any potential threats. Once you’ve downloaded and installed SafeBytes Anti-Malware, you no longer have to bother about malware or any other security concerns. If you’re searching for the absolute best malware removal application out there, and if you don’t mind spending some money for it, opt for SafeBytes Anti-Malware.

Technical Details and Manual Removal (Advanced Users)

If you want to manually get rid of FlightSearchApp without using an automated tool, it may be possible to do so by deleting the application from the Microsoft Windows Add/Remove Programs menu, or in cases of web browser plug-ins, going to the browser’s AddOn/Extension manager and uninstalling it. You may even want to reset your home page and search providers, as well as delete temporary files, browsing history, and cookies. Lastly, check your hard disk for all of the following and clean your computer registry manually to get rid of leftover application entries after uninstalls. Please remember that only experienced computer users should try to manually edit the registry because incorrect file removal results in a serious problem or even a PC crash. In addition, some malware is capable of replicating itself or preventing deletion. Doing this in Safe Mode is advised.
Files: %PROGRAMFILES(x86)%\FlightSearch_fo %PROGRAMFILES%\FlightSearch_fo %UserProfile%\Local Settings\Application Data\FlightSearchTooltab %LOCALAPPDATA%\FlightSearchTooltab Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe Debugger = svchost.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe Debugger = svchost.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\free.flightsearchapp.com HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings WarnOnHTTPSToHTTPRedirect = 0 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings WarnOnHTTPSToHTTPRedirect = 0 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore DisableSR = 1 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe Debugger = svchost.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe Debugger = svchost.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run 3948550101 HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run xas HKEY_CURRENT_USER\Software\free.flightsearchapp.com
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windows 11 new fetures full screen widgets

Phishing protection

One of the most interesting upcoming features is enhanced phishing protection. Microsoft Defender SmartScreen will be upgraded to alert users when they try to store passwords in plain text files and also if they accidentally type in a Microsoft account password on phishing sites.

"These enhancements will make Windows the world's first operating system with phishing safeguards built directly into the platform and shipped out of the box to help users stay productive and secure without having to learn to be their own IT department,"

Microsoft

File Explorer gets tabs, a modern sidebar, and contextual suggestions

Finally, Windows File explorer is getting tabs that will allow much easier management of folders and files inside it.

It is confirmed that Microsoft is also working on a new 'HOME' sidebar that should be modern in design and in features including OneDrive so you can find everything in one place.

Pinning of favorite files was also mentioned so you can easily pin favorites for quick access.

Full-screen widgets

Windows 11 has brought back widgets in a new way and from all the feedback users are loving them. Currently, you have a widget sidebar on the left part of the screen where you have your chosen store widgets but from the Microsoft teaser, we will have soon the option to have them in full screen.

If you are using a widget for reading news, blogs, etc. this feature will be very good since you will be able to use your whole screen for information and not just a part of it.

Suggested actions

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Hide game activity and set privacy on Steam
Steam is a game store behemoth that offers more titles than any other game store online, take that along with the fact that steam was one of the first online dedicated stores for games and you can guess that many people have a steam account, buy and play games on it. It is a platform where you can meet new people in games and add them as friends on steam so you can spend some time together. But happens if you want to have friends on Steam but you would like to hide your game activity? Or even if you want to go fully private on Steam so no one can find you so you can play whatever you want without paying and judging eyes? Luckily Valve appreciates your privacy and offers ways to do exactly this. Keep on reading on how to set up your privacy settings in Steam.

Hiding Steam game activity

  • Launch Steam on your PC.
  • Go to the top bar of Steam and click on your name.
  • Select Profile from the context menu.
  • Click on the Edit Profile button present at the right section of the window.
  • Next, click on the My Privacy Settings button.
  • Now, the Privacy Settings page will be opened.
  • Scroll down and go to the My Profile section.
  • Open the drop-down list given next to the Game Details and select the Private option.
  • Now, check if this process is working or not. For this, right-click anywhere on the blank space in the Steam screen > choose the Copy Page URL option.
  • Then, open a browser and paste the copied page URL in the address bar and check whether your Steam game activity is hidden or not.

Making profile private

  • Launch Steam > click on your name > select Profile from the menu list.
  • Click on the Edit Profile > My Privacy Settings button.
  • Go to the My Profile and open the dropdown menu.
  • Click on the Private option.
  • Now, the changes will be saved automatically.
If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.
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Could not connect to the System Event
Could not connect to the System Event explanation: Although logging into a Windows 10 computer may seem like a simple process, it’s actually not since the Windows operating system has built a mechanism in a way that any third party or malware intervention would not compromise access to the system. This mechanism is supported by numerous services, functions, and DLL files. And Microsoft has been taking this security to a whole new level with the introduction of Windows Hello. Recently, a number of users reported getting the “Windows could not connect to the System Event Notification Service service. Please consult your system administrator” error when logging into their computers. While some users also reported that although they can log in, they encounter the same error message from the Notification area. There are several options you can check out to resolve the error. You have to check the status of several Windows Services and make sure that they are running. You also have to reset Winsock as well as run the System File Checker scan.

Option 1 – Check for certain Windows Services

  • First, you need to tap the Win + R keys on your keyboard to open the Run dialog box.
  • Next, type “services.msc” in the field and click OK or tap Enter to open the Windows Services Manager.
  • After that, you will see a list of services and from there, look for the following Windows Services:
    • DHCP Client
    • System Event Notification Service
    • Windows Font Cache Service
  • Now make sure that the Startup Type of each service is started and running.

Option 2 – Try resetting the Winsock drivers

  • In the Start Search, type “command prompt” and right-click on Command Prompt from the search results, and then select the “Run as administrator” option.
  • After opening Command Prompt, execute this command: netsh winsock reset
Note: If you are using IPv4, execute the “netsh int ipv4 reset” instead. On the other hand, if you are using IPv6, execute the “netsh int ipv6 reset
  • Now exit Command Prompt and see if the error is now fixed.

Option 3 – Try running System File Checker or SFC scan

You could also run System File Checker or SFC scan to fix the BSOD error. It is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.
  • Tap Win + R to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow
The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:
  1. Windows Resource Protection did not find any integrity violations.
  2. Windows Resource Protection found corrupt files and successfully repaired them.
  3. Windows Resource Protection found corrupt files but was unable to fix some of them.
  • Reboot your PC.
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Fix the HTTP Error 304 Not modified
When you get the “HTTP Error 304 Not modified” error in Google Chrome, Mozilla Firefox, or Microsoft Edge, there can be lots of reasons why you’re getting this error. The HTTP Error code 304 means redirection, technically. It could be that the DNS has some issues or the cache is already reusing the existing information to look for a website or it could also be that your browser might be infected. In this post, we will show you what you can do to fix the “HTTP Error 304 Not modified” error when you are not able to open a website on your browser. Here are the exact details of the error message:
“This status code is returned if the client has already downloaded resources since the last visit and is displayed to notify the client browser that the requested resources is already stored in the browser cache which hasn’t been modified.”
Follow each one of the given fixes below to resolve the issue.

Option 1 – Clear the browsing data on your browsers

The first thing you can try is clearing the browsing data on your browsers.

Microsoft Edge:

  • Open Microsoft Edge.
  • Then click on the three horizontal dots to open the menu.
  • From there, click on Settings. And under Settings, click the “Choose what to clear” button under the Clear browsing data section.
  • Next, check all the checkboxes and then click the Clear button to clear the browsing data in the Edge browser.
  • Restart Edge.

Google Chrome:

  • Open Chrome and then click on the three vertical dots located at the top of the window.
  • Then click on Settings.
  • After that, click on Advanced. And from the Privacy and Security section, click on the “Clear browsing data” option.
  • Now click on the CLEAR DATA button.
  • Restart Chrome.

Mozilla Firefox:

  • Open Firefox and then click on the three horizontal lines to open the menu.
  • From there, click on Options.
  • Next, select Privacy & Security.
  • After that, click on the Clear Now button under the Cached Web Content section and then click the Clear All Data button under the Site Data section.
  • Restart Firefox.

Option 2 – Flush DNS and reset the TCP/IP

There are some websites that don’t resolve since the DNS in your computer still remembers that old IP address. And so you need to flush the DNS as well as reset the TCP/IP on your computer.
  • Click the Start button and type in “command prompt” in the field.
  • From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
  • After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
    • ipconfig /release
    • ipconfig /all
    • ipconfig /flushdns
    • ipconfig /renew
    • netsh int ip set dns
After you key in the commands listed above, the DNS cache will be flushed and the TCP/IP will reset.

Option 3 – Try using the Google Public DNS

Changing your DNS to Google Public DNS might also help you in fixing the “HTTP Error 304 Not modified” error. To do so, follow the steps below.
  • The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
  • Next, click on the “Change Adapter Settings” option.
  • After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
  • Right-click on your network connection and click on Properties.
  • Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
  • After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
  • Type in “8.8.8.8” and “8.8.4.4” and click OK and exit.

Option 4 – Run Cleanup Tool and disable Extensions

You might also want to run the Cleanup Tool in Chrome if you are using this browser as well as disable all the extensions as some of them, if not all, might be the reason why you’re getting the “HTTP Error 304 Not modified” error.
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How to Fix Unable to contact your DHCP Server
If your IP address expires, you will most likely experience interruptions when browsing the web. In such cases, you have to release and renew the IP address by executing the following commands:
  • ipconfig /release
  • ipconfig /renew
So if you are trying to renew the IP address of your Windows 10 computer using the commands given above but you encounter an error message instead that says, “Unable to contact your DHCP Server”, then you’ve come to the right place as this post will guide you in fixing this error. This kind of error indicates that the NIC can’t communicate with the DHCP server which is why it’s not able to release new IP addresses. It could be due to many reasons. To fix this error, you can try to roll back, update or reinstall the Network Adapter drivers. You could also run the built-in Network Adapter troubleshooter, as well as start or restart the DHCP client service.

Option 1 – Try to rollback your Network driver

If you have updated the driver software as of late and you suddenly got this error, you might have to roll back the device driver – in other words, switch back to the previous working version. To do that, follow these steps:
  • Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
  • Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
  • Next, select the driver entries that are labeled appropriately other than anything in the context of the WAN Miniport.
  • Then select each one of them and double click to open a new mini window.
  • After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of your Network adapters.
  • Now restart your computer to successfully apply the changes made.

Option 2 – Try to update the Network drivers

If rolling back to the previous version of the Network adapter drivers didn’t help, then you need to update them instead. To do so, here’s what you have to do:
  • Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
  • Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand them.
  • Then right-click on each one of the Network drivers and update them all.
  • Restart your PC and see if it helped in fixing the BSOD error.
Note: If updating the network drivers didn’t help in fixing the problem, you can also try to uninstall the very same drivers and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly.

Option 3 – Run the Network Adapter troubleshooter

Running the built-in Network Adapter troubleshooter can also help in fixing the “Unable to contact your DHCP Server” error. To run the Network Adapter Troubleshooter, refer to these steps:
  • Open the Search bar on your computer and type in “troubleshoot” to open the Troubleshoot settings.
  • Next, scroll down and select the “Network Adapter” option from the right pane.
  • Then click on the Run Troubleshooter” button.
  • After that, your computer will check for any possible errors and will pinpoint the root cause of the problem if possible.
  • Restart your computer.

Option 4 – Try disabling the IPv6 in the Network Center

  • Tap the Win + X key combination and click on Network Connections.
  • This will open the Settings app on a specific page. Now on the right-side panel, click on the Network and Sharing Center link.
  • After that, it will open the Control Panel and from there, click on the network that your computer is connected to and then click on Properties.
  • Next, uncheck the entry that says, “Internet Protocol Version 6 (TCP/IPv6)” in the list that populates.
  • Now click on OK and close all other windows.
  • Restart your computer and see if the error is now fixed.

Option 5 – Start or restart the DHCP client service

If the DHCP client service is either inactive or stopped, you can try to start or restart it to resolve the error. You can do this via the Services Manager.
  • Tap the Win + R keys to open the Run utility.
  • Then type “services.msc” in the field and tap Enter or click OK to open the Services Manager.
  • After that, look for the DHCP client service from the list of services displayed.
  • Once you found it, right-click on it and select the Start or Restart option.
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How to get rid of FunPopularGames.com

FunPopularGames is a browser extension developed by Mindspark Inc. that lets you play popular, best-rated, and other games via popular websites, it also allows you to bookmark your favorite games for faster and easier access.

When installed it changes your default new tab page and default search engine to Search by MyWay. While browsing the internet with this extension enabled you will see additional injected ads, sponsored content, and pop-up ads throughout your browsing sessions.

While active this extension monitors user activity and browsing sessions, enabling it to track visited websites, clicked links, and other useful information that it later forwards to Mindspark to be used/sold for better ad placement.

About Browser Hijackers

Browser hijacking is amongst the internet’s constant risks that target internet browsers. It’s a kind of malicious software that alters your web browser’s configuration settings so that you are redirected to sites or web pages you had no intention of visiting. Browser hijackers could do a variety of things on your PC. These are generally used to force hits to predetermined sites, manipulating web traffic to generate ad revenue. Although it may seem naive, all browser hijackers are harmful and therefore always classified as security threats. Browser hijackers could also allow other destructive programs without your knowledge to further damage your PC.

How to determine if your internet browser has been hijacked

The following are some signs and symptoms that indicate you’ve been hijacked: 1. the home page of your browser is changed suddenly 2. you find new unwanted bookmarks or favorites added, usually directed to ad-filled or porn sites 3. the default online search engine and the default browser settings are altered 4. you see unsolicited new toolbars added 5. unstoppable flurries of popup ads show up on your computer screen 6. your browser has become unstable or starts running sluggishly 7. you can’t navigate to certain web pages, such as security software-related sites.

Exactly how browser hijacker finds its way onto your PC

There are several ways your computer or laptop can become infected with a browser hijacker. They typically arrive by way of spam email, via file sharing websites, or by a drive-by download. They can also originate from any BHO, extension, add-on, toolbar, or plug-in with malicious intent. Sometimes you might have accidentally accepted a browser hijacker as part of an application bundle (usually freeware or shareware). Browser hijacking can cause serious privacy problems and also identity theft, disrupt your browsing experience by taking control of outbound traffic, drastically slows down your computer by consuming lots of resources, and lead to system instability at the same time.

Browser Hijacker Malware – Removal

Certain browser hijacking can be simply reversed by discovering and removing the corresponding malware application from your control panel. But, the majority of hijacking codes are not easy to get rid of manually, since they go deeper into the operating system. Moreover, manual removals require in-depth system understanding and therefore could be a very difficult job for beginner computer users. Anti-malware software is really effective with regards to discovering and removing browser hijackers that standard anti-virus program has overlooked. To eradicate any type of browser hijacker from your personal computer, you should download this certified malware removal application – SafeBytes Anti-Malware.

What To Do When You Cannot Install Any Anti-virus?

Malware can cause all sorts of damage if they invade your PC, ranging from stealing your private information to deleting data files on your computer. Some malware is created to interfere with or prevent things that you want to do on your computer system. It may not allow you to download anything from the web or it will stop you from accessing a few or all internet sites, especially the anti-malware websites. If you’re reading this, you may have got affected by malware that stops you from downloading a security program such as Safebytes Anti-Malware. Although this type of issue will be difficult to circumvent, there are a few steps you can take.

Get rid of malware in Safe Mode

In Safe Mode, you are able to modify Windows settings, un-install or install some software, and eradicate hard-to-delete viruses. In the event the malware is obstructing internet access and affecting your PC, launching it in Safe Mode allows you to download antivirus and run a scan while limiting potential damage. To start the computer into Safe Mode, press the “F8” key on the keyboard just before the Windows logo screen comes up; Or right after normal Windows boot up, run MSConfig, look over “Safe Boot” under the Boot tab, and then click Apply. As soon as you reboot into Safe Mode with Networking, you can download, install, as well as update the anti-malware program from there. At this point, you can run the anti-malware scan to get rid of computer viruses and malware without any hindrance from another application.

Switch over to an alternate browser

Malicious program code may exploit vulnerabilities in a particular web browser and block access to all anti-malware software sites. If you are not able to download the security program using Internet Explorer, this means malware is targeting IE’s vulnerabilities. Here, you must switch to a different web browser like Chrome or Firefox to download the Safebytes application.

Create a portable antivirus for removing malware

Another method is to download and transfer anti-malware software from a clean PC to run a scan on the affected computer. Follow these steps to employ a flash drive to clean your corrupted system. 1) On a clean PC, install Safebytes Anti-Malware. 2) Plug the Thumb drive into the clean computer. 3) Double-click the Setup icon of the anti-malware software to run the Installation Wizard. 4) Choose the flash drive as the location for saving the file. Follow the directions to finish the installation process. 5) Remove the USB drive. You can now use this portable antivirus on the infected computer system. 6) Double-click the antivirus program EXE file on the USB flash drive. 7) Run Full System Scan to identify and clean-up up all kinds of malware.

SafeBytes Security Suite Benefits

In order to protect your laptop or computer from a variety of internet-based threats, it’s very important to install an anti-malware program on your PC. But with so many anti-malware companies out there, nowadays it’s difficult to decide which one you should obtain for your computer. A few of them do a good job in removing malware threats while some will ruin your computer by themselves. You have to pick one that is dependable, practical, and has a good reputation for its malware protection. Among few good applications, SafeBytes Anti-Malware is the strongly recommended software program for the security-conscious end user. SafeBytes anti-malware is a powerful, highly effective protection tool designed to help end-users of all levels of IT literacy in finding and removing harmful threats out of their personal computers. With its cutting-edge technology, this application will allow you to eradicate several types of malware which include viruses, PUPs, trojans, worms, ransomware, adware, and browser hijackers.

SafeBytes has got a plethora of wonderful features that can help you protect your computer from malware attacks and damage. A few of them are listed as below:

World-class AntiMalware Protection: With its advanced and sophisticated algorithm, this malware elimination tool can detect and remove the malware threats hiding in the computer effectively. Real-time Active Protection: SafeBytes offers an entirely hands-free active protection that is set to check, block and destroy all computer threats at its first encounter. They’re very efficient in screening and removing various threats since they’re continuously revised with new updates and safety measures. Internet Security: SafeBytes gives an instant safety rating to the pages you’re about to visit, automatically blocking dangerous sites and ensuring that you are certain of your online safety while browsing the web. Lowest CPU and Memory Usage: SafeBytes is a lightweight and easy-of-use anti-virus and antimalware solution. Since it utilizes minimum computer resources, this software leaves the computer’s power exactly where it belongs: with you. 24/7 Online Support: For any technical concerns or product assistance, you could get 24/7 professional assistance via chat and email. SafeBytes has come up with an excellent anti-malware solution that can help you conquer the latest malware threats and virus attacks. Malware trouble can become a thing of the past when you put this software program to use. You will get the very best all-around protection for the money you pay on SafeBytes Anti-Malware subscription, there isn’t any doubt about it.

Technical Details and Manual Removal (Advanced Users)

If you do not wish to use an automated tool and like to get rid of FunPopularGames manually, you could possibly do so by going to the Windows Add/Remove Programs menu in the Control Panel and delete the offending program; in cases of browser extensions, you may remove it by going to the browser’s Add-on/Extension manager. You will probably also want to reset your web browser to its default configuration settings. To be certain of complete removal, find the following registry entries on your computer and remove them or reset the values accordingly. However, editing the registry is usually a hard task that only advanced users and professionals should try to fix the problem. Moreover, some malicious programs have the capability to defend against its removal. Completing this task in Safe Mode is advised.
Files: Search and delete: AppIntegrator.exe AppIntegrator64.exe AppIntegratorStub.dll AppIntegratorStub64.dll AssistMonitor.dll AssistMonitor64.dll BAT.dll CrExt.dll CrExtPdu.exe DpnMngr.dll dubar.dll dubarsvc.exe dubprtct.dll dudatact.dll dudlghk.dll dudlghk64.dll dufeedmg.dll duhighin.exe duhtmlmu.dll duhttpct.dll duidle.dll dumedint.exe dumlbtn.dll duPlugin.dll duregiet.dll duscript.dll duskin.dll duskplay.exe duSrcAs.dll HiddenToolbarReminder.dll HkFxMgr.dll HkFxMgr64.dll InstallEnabler.dll t8EPMSup.dll T8EXTEX.DLL T8EXTPEX.DLL T8HTML.DLL t8Res.dll T8TICKER.DLL ToolbarGuard.dll ToolbarGuard64.dll Verify.dll TPIManagerConsole.exe
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10 Worst Computer Viruses in history
Computers viruses, worms, ransomware, etc. are kinds of malicious software that no user should take lightly. On several occasions, we have touched upon security steps that each user should take in order to protect its identity and data. Sadly sometimes even when all precautions are taken some malware can still slip through and wreak havoc. Today we are looking at some of the worst or the best, depending on your view that has indeed wreaked plenty of havoc.

viruses10 worst computer viruses in history

In the list of the 10 most famous computer viruses below, we show the costs, dates, reach, and other key facts. First a note about terms: we use the words “virus” and “worm” interchangeably because most readers search for them that way. But there’s a subtle difference that we explain after the list.

1. Mydoom – $38 billion

The worst computer virus outbreak in history, Mydoom caused estimated damage of $38 billion in 2004, but its inflation-adjusted cost is actually $52.2 billion. Also known as Novarg, this malware is technically a “worm,” spread by mass emailing. At one point, the Mydoom virus was responsible for 25% of all emails sent. Mydoom scraped addresses from infected machines, then sent copies of itself to those addresses. It also roped those infected machines into a web of computers called a botnet that performed distributed denial of service (DDoS) attacks. These attacks were intended to shut down a target website or server. Mydoom is still around today, generating 1% of all phishing emails. That’s no small feat considering the 3.4 billion phishing emails sent each day. By that figure, Mydoom has taken on a life of its own, infecting enough poorly-protected machines to send 1.2 billion copies of itself per year, 16 years after its creation. Though a $250,000 reward was offered, the developer of this dangerous computer worm was never caught. Wondering what makes the world’s most secure computers so safe? See the Tech@Work guide: Upgrade to the World's Most Secure and Manageable PC

2. Sobig – $30 billion

The 2003 Sobig computer virus is actually another worm. It is second only to the Mydoom virus in its scope. The $30 billion figure is a worldwide total, including Canada, the U.K., the U.S., mainland Europe, and Asia. Several versions of the worm were released in quick succession, named Sobig.A through Sobig.F, with Sobig.F being the most damaging. This cybercriminal program masqueraded as legitimate computer software attached to emails. It disrupted ticketing at Air Canada and interfered with countless other businesses. Despite its widespread damage, the creator of the successful bug was never caught.

3. Klez – $19.8 billion

Klez is a close third on the list of the worst computer viruses ever created. With nearly $20 billion in estimated damages, it infected about 7.2% of all computers in 2001, or 7 million PCs. The Klez worm sent fake emails, spoofed recognized senders and, among other things, attempted to deactivate other viruses. As with other viruses and worms, Klez was released in several variants. It infected files, copied itself, and spread throughout each victim’s network. It hung around for years, with each version more destructive than the last. Windows has come a long way since most of the computer viruses on this list hit the web. Thankfully, built-in protection with Microsoft Defender is always on the watch.

4. ILOVEYOU – $15 billion

The year 2000’s ILOVEYOU virus worked by sending a bogus “love letter” that looked like a harmless text file. Like Mydoom, this attacker sent copies of itself to every email address in the infected machine’s contact list. Shortly after its May 4 release, it had spread to more than 10 million PCs. The virus was created by a college student in the Philippines named Onel de Guzman. Lacking funds, he wrote the virus to steal passwords so he could log into online services he wanted to use for free. He reportedly had no idea how far his creation would spread. This virus is also known as Loveletter. Need to up your remote work security game before there’s another entry on the list of most deadly computer viruses? See our guide: How to Work Remotely and Securely

5. WannaCry – $4 billion

The 2017 WannaCry computer virus is ransomware, a virus that takes over your computer (or cloud files) and holds them hostage. The WannaCry ransomware ripped through computers in 150 countries, causing massive productivity losses as businesses, hospitals, and government organizations that didn’t pay were forced to rebuild systems from scratch. The malware raged like wildfire through 200,000 computers worldwide. It stopped when a 22-year-old security researcher in the U.K. found a way to turn it off. Computers with out-of-date operating systems were hit especially hard. That’s why security experts always recommend updating your systems frequently.

Ransomware strikes again

In September 2020, one of the potentially largest computer virus attacks in medical history hit Universal Health Services. The U.S. hospital chain, which has more than 400 locations, was reportedly struck by damaging ransomware. The attack forced the cancellation of surgeries and made healthcare workers switch to paper records.

6. Zeus – $3 billion

The Zeus computer virus is an online theft tool that hit the web in 2007. A whitepaper by Unisys three years later estimated that it was behind 44% of all banking malware attacks. By then, it had breached 88% of all Fortune 500 companies, 2,500 organizations total, and 76,000 computers in 196 countries. The Zeus botnet was a group of programs that worked together to take over machines for a remote “bot master.” It originated in Eastern Europe and was used to transfer money to secret bank accounts. More than 100 members of the crime ring behind the virus, mostly in the U.S., were arrested in 2010. It’s not as prominent today, but some of the virus’ source code lives on in newer botnet viruses and worms. Zeus caused documented damage of $100 million. But the real cost in terms of lost productivity, removal, and undocumented theft is undoubtedly much higher. A $3 billion estimate, adjusted for inflation, puts this virus at a cost of $3.7 billion in today’s dollars.

7. Code Red – $2.4 billion

First observed in 2001, the Code Red computer virus was yet another worm that penetrated 975,000 hosts. It displayed the words “Hacked by Chinese!” across infected web pages, and it ran entirely in each machine’s memory. In most cases it left no trace in hard drives or other storage. Financial costs are pegged at $2.4 billion. The virus attacked websites of infected computers and delivered a distributed denial of service (DDoS) attack on the U.S. White House’s website, www.whitehouse.gov. In fact, the White House had to change its IP address to defend against Cod Red. Can your printer get a virus? See our cool infographic: The State of Printer Security

8. Slammer – $1.2 billion

The SQL Slammer worm cost an estimated $750 million across 200,000 computer users in 2003. This computer virus randomly selected IP addresses, exploiting vulnerabilities and sending itself on to other machines. It used these victim machines to launch a DDoS attack on several internet hosts, significantly slowing internet traffic. The Slammer worm hit banks in the U.S. and Canada especially hard, taking ATMs offline in many locations. Customers of Toronto’s Imperial Bank of Commerce found themselves unable to access funds. The attack reared its ugly head again in 2016, launching from IP addresses in Ukraine, China, and Mexico.

9. CryptoLocker – $665 million

Thankfully, ransomware attacks like the 2013 CryptoLocker virus have dipped since their 2017 peak. This malware attacked upwards of 250,000 machines by encrypting their files. It displayed a red ransom note informing users that “your important files encryption produced on this computer.” A payment window accompanied the note. The virus’ creators used a worm called the Gameover Zeus botnet to make and send copies of the CryptoLocker virus. According to a report by security firm Sophos, the average ransomware attack costs a business $133,000. If we estimate that CryptoLocker hit 5,000 companies, that would put its total cost at $665 million. Where will cybersecurity go next? See our guide: The Future of Cybersecurity

10. Sasser – $500 million

The Sasser worm was written by a 17-year-old German computer science student named Sven Jaschan. He was arrested at the age of 18 in 2004 after a $250,000 bounty was posted for the computer virus’ creator. A friend of Jaschan’s tipped authorities that the youth had penned not only the Sasser worm but also the damaging Netsky.AC attack. Jaschan was given a suspended sentence after it was found he was a minor when he wrote the malware. The Sasser worm crashed millions of PCs, and though some reports put damages at $18 billion, the relatively low infection rate suggests a more likely cost of $500 million. Other notable viruses The top 10 worst computer viruses above are just the ugly tip of a gargantuan digital iceberg. With a million new malware programs popping up every 3 years, we may miss the forest for a few outstanding trees. Here are just a few more viruses that have wreaked havoc over the years: Mimail: This worm tried to harvest data from infected machines to launch a string of DDoS attacks, but was relatively easy to remove. Yaha: Yet another worm with several variants, thought to be the result of a cyber-war between Pakistan and India. Swen: Written in C++, the Swen computer worm disguised itself to look like a 2003 OS update. Its financial cost has been pegged at $10.4 billion, but not reliably. Storm Worm: This worm showed up in 2007 and attacked millions of computers with an email about approaching bad weather. Tanatos/Bugbear: A 2002 keylogger virus that targeted financial institutions and spread to 150 countries. Sircam: A computer worm from 2001 that used counterfeit emails with the subject line, “I send you this file in order to have your advice.” Explorezip: This worm used fake emails to spread to every machine on thousands of local networks. Melissa: The most dangerous computer virus in 1999, Melissa sent copies of itself that looked like NSFW pics. The U.S. FBI estimated cleanup and repair costs at $80 million. Flashback: A Mac-only virus, Flashback infected over 600,000 Macs in 2012 and even infected Apple’s home base in Cupertino, Calif. In 2020, there’s now more malware on Macs than on PCs. Conficker: This 2009 virus still infects many legacy systems and could do significant damage if it ever activates. Stuxnet: This worm is reported to have destroyed Iranian nuclear centrifuges by sending damaging instructions.
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