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A Quick Guide to Fixing Error 577

Error 577 - What is it?

This is a typical system error code. It stops your ability to run or load programs on your PC. The error message is displayed in the following format:

‘Windows cannot verify the digital signature for this file.

A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.’

Solution

Restoro box imageError Causes

Error 577 may be triggered due to several reasons. However, the most common causes of this error include:

  • Device Driver Conflicts
  • Hardware Malfunction
  • Viral Infection
  • Windows Registry Corruption or Damage
  • Software File Corruption or Damage

Error 577 can prove to be fatal if the underlying causes are related to viral infection or registry corruption.

Further Information and Manual Repair

To resolve error 577 on your PC, you don’t have to hire a professional and spend hundreds of dollars on repair. The process for fixing this error is simple and easy.

Here are some of the best and efficient methods to repair error 577 - no technical expertise is required.

Method 1 - Check and Update Device Drivers

If the problem is triggered by the outdated or corrupted driver for the device reporting the error then it is advisable to update the driver.

To do this, first, uninstall the corrupted driver and then reinstall the latest version.

For this simply click the start menu, go to the control panel and then click Performance and Maintenance, and then System. In the new window, you will then see a tab called Hardware and the Device Manager.

Double click on the device whose driver you need to uninstall. Click on the properties window with a tab marked driver. Then click on the driver you want to uninstall. To activate changes reboot your PC.

Now reinstall the latest and updated version of the driver uninstalled using the Plug and Play feature.

Method 2 - Scan For Viruses

System error codes like 577 can also pop up if your PC is infected by viruses. Viruses enter through phishing emails and downloadable files from unreliable websites.

If the reason for error 577 is a viral infection, then simply install a powerful antivirus, run it to scan your entire PC. Remove all the viruses and malicious programs immediately to resolve.

If the issue still persists, then try method 3.

Method 3 - Repair the Registry

Sometimes registry corruption can be the underlying cause for error 577. The registry is the part that saves all activities performed on the system.

It stores both important and unnecessary files like junk files, cookies, and bad registry entries. If these files are not removed from the registry frequently, they accumulate and corrupt the registry which then generates system error codes.

To resolve and repair the registry in seconds, simply download Restoro. This is a user-friendly PC Repair Tool embedded with a registry cleaner. It wipes away all unnecessary files corrupting the registry and repairs it.

Click here to download Restoro.

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Windows Update failed, error 0x80240034
If you got an error message saying, “Windows Update failed to install error 0x80240034” when trying to update your Windows 10 then it’s probably due to some update services that are failing at some point. In addition, you might also see Error constant WU_E_DOWNLOAD_FAILED with the description that “Update has failed to download”. The Windows Update failed to install error 0x80240034 might be caused by some connection problem or there might be a duplicate update or that installation is not allowed and so on. And so to fix the problem, we’ve prepared some options that could help. Make sure to follow them accordingly but before you proceed, you need to verify if you have a stable internet connection.

Option 1 – Restart your computer and try installing the Updates again

Restarting your computer can also help in fixing the Windows Update failed to install error 0x80240034. There are cases where the issue resolves on its own as it could just be some simple network or PC error.

Option 2 – Try to disable your antivirus program

The Windows Update failed to install error 0x80240034 might be caused by the antivirus program installed in your computer which is why disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the Windows Update process does not go smoothly. So before you try updating your computer again, make sure to disable the antivirus or security program and once the Windows Update is done, don’t forget to enable the antivirus program back again.

Option 3 – Clean up temporary and junk files

  • Open Setting > System > Storage from the WinX Menu.
  • From there, you will see a list of all the local and connected storage devices along with the details on the free space.
  • Now make sure that the Storage Sense feature is turned On then go find a link that says “Free Up Space” and click it to open.
  • After that, a screen which is the built-in program in Windows 10 will appear and will scan your computer for the following junk files so you can free up disk space:
  • Windows Upgrade Log Files
  • The system created Windows Error Reporting Files
  • Thumbnails
  • Temporary Internet Files
  • Previous Windows Installation Files
  • Delivery Optimisation Files
  • DirectX Shader Cache
Note: Once you’re done freeing up space on your drive, try to run the setup file again.

Option 4 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update errors like error 0x80240034. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 5 – Delete Files from Software Distribution Folder & Catroot2 folders

The downloaded Windows Updates are placed in a folder called “SoftwareDistribution”. The files downloaded in this folder are automatically deleted once the installation is completed. However, if the files are not clean up or if the installation is still pending, you can delete all the files in this folder after you pause the Windows Update service. For complete instructions, refer to the steps below.
  • Open the WinX Menu.
  • From there, open Command Prompt as admin.
  • Then type in the following command – don’t forget to hit Enter right after typing each one of them.
net stop wuauserv net start cryptSvc net start bits net start msiserver
  • After entering these commands, it will stop the Windows Update Service, Background Intelligent Transfer Service (BITS), Cryptographic, and the MSI Installer
  • Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
After resetting the SoftwareDistribution folder, you need to reset the Catroot2 folder to restart the services you just stopped. To do that, follow these steps:
  • Type each one of the following commands.
net start wuauserv net start cryptSvc net start bits net start msiserver
  • After that, exit Command Prompt and restart your computer, and then try to run Windows Update once more.

Option 6 – Run the DISM tool

If the first five options didn’t work, then running the Deployment Imaging and Servicing Management tool might help as it can repair the Windows System Image as well as the Windows Component Store in Windows 10.
  • After you access the Advanced Startup options, select Command Prompt by using the arrow keys on your keyboard.
  • Next, type in this command: DISM /Online /Cleanup-Image /RestoreHealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 7 – Run System File Checker

Running the SFC scan or System File Checker might also help in fixing error 0x80240034.
  • Tap Win + R to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow and hit Enter.
  • Restart your PC.

Option 8 – Try to use the Media Creation tool

The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.
  • After making the bootable drive, you need to plug it into your computer and then reboot.
  • Next, tap the F10 or Esc key to open the boot options.
  • Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.
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Fix An unspecified error 0x800700b7
If you receive an error that says, “An unspecified error occurred during System Restore (0x800700b7)” when you tried to restore your Windows 10 PC, worry not, for this post will help you resolve the problem. This kind of error typically occurs when System Restore was not completed successfully and fails instead with this error. Before you start, you must not abruptly shut down your computer and wait for the error to occur. You may receive this error due to many possible reasons. It could be caused by your antivirus program that’s not letting the process complete or corrupted system files which causes the failure or it could also be caused by an unsuccessful installation of a Windows Update. Here are some fixes you can check out if you can still boot into your computer:

Option 1 – Try to disable your antivirus program

Disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the System Restore process does not go smoothly. So before you try updating your computer again, make sure to disable the antivirus or security program and then run System Restore again, don’t forget to enable the antivirus program back again.

Option 2 – Run the DISM tool

The next thing you can do is run the DISM tool. This tool is known to repair potentially corrupted files in your system as having them could also system issues like the blank dialog boxes. To repair these corrupted system files, you can run the DISM commands:
  • Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
  • After that, input each one of the commands listed below sequentially to execute them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • Dism /Online /Cleanup-Image /RestoreHealth
  • Once you’ve executed the commands given above, restart your computer and check if the problem is now fixed.

Option 3 – Run the System File Checker

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files to good system files that might be the cause why you’re getting the errors 0x8024a11a and 0x8024a112. To run the SFC command, follow the steps given below.
  • Type “cmd” in the Start search and then right-click on the appropriate search result.
  • Next, select “Run as administrator” to open Command Prompt with admin privileges.
  • 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.
  • Now restart your computer and see if the problem is fixed or not.

Option 4 – Try to run the System Restore in a Clean Boot State

If the first three given options didn’t work and the service still keeps on failing even though the service is running, you can try putting your computer in a Clean Boot State and then try to run System Restore again.
  • Log onto your PC as an administrator.
  • Type in MSConfig in the Start Search to open the System Configuration utility.
  • From there, go to the General tab and click “Selective startup”.
  • Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
  • Next, click the Services tab and select the “Hide All Microsoft Services” check box.
  • Click Disable all.
  • Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
  • Now try to run System Restore again and see if the process goes smoothly.

Option 5 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing the problem with System Restore. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go. On the other hand, if you can’t boot into your Windows 10 computer, here are some fixes you can try instead:

Option 6 – Try running System Restore in Advanced Startup Options

If you cannot boot into your Windows 10 computer, you can try to run System Restore again in the Advanced Startup Options.
  • Boot your computer into the Advanced Startup Options screen.
  • From there, you will see some options to troubleshoot when you can’t log in to Windows in the usual way.
  • Now select Troubleshoot > Advanced Options > Command Prompt.
  • After that, type “rstrui” and hit Enter to execute the command which will start the System Restore process.

Option 7 – Run the SFC scan and DISM via Advanced Startup Options

Like what you did in the first given option, you can use the Advanced Startup Options to run both System File Checker and DISM. All you have to do is boot into the Advanced Startup Options and from there select Troubleshoot > Advanced Options > Command Prompt. After accessing Command Prompt, you can run the System File Checker scan first by entering the “sfc /scannow”. As for DISM, you can run the “Dism /Online /Cleanup-Image /RestoreHealth” command.

Option 8 – Try to run the Automatic Repair Utility

You might also want to use Automatic Repair in fixing the error. To do so, follow the steps below.
  • You can start by creating and booting from a bootable Windows 10 USB Stick.
  • After that, click on Repair your computer located in the bottom left corner when you are on the initial Windows Startup screen.
  • Next, click on Troubleshoot, and then on the other screen, click the Startup Repair option.
  • Now select the operating system you want to repair. Once you do that, it will start to repair your operating system. Wait until the process is completed and then check if the problem’s now fixed.
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Fix Windows is not starting
Hello everyone and welcome to how to fix Windows when it is not starting tutorial. Here we will tackle some common problems and solutions in order to help you to get back both your computer and Windows in working order. Windows not booting and loading is an annoying issue that can even result in complete loss of your data and can also consume a lot of time if no other solution than clean install remains. Also if you are not tech-savvy, this issue can cost you as well since you will have to hire a professional to solve this problem for you. Here at Error Tools, we aim to help so you can overcome your PC issues yourself by providing you daily with tutorials, tips, and tricks and helping you with all of your Windows issues. All of that being said, let's see what are issues that can prevent your computer or Windows from booting up and get around them so everything is back in working order.
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  2. “Windows Failed to Start” 0xc00000f error

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  3. Boot into safe mode

    Safe mode for Windows loads only its core without drivers and with minimal services. If you can boot into safe mode then the issue is with some application or driver causing the problem. Try the selective boot option to eliminate what is causing the error.
  4. Make sure your hardware is connected

    Some RAM or hard drive out of socket can cause Windows not to be able to boot, check all connections just in case.
If everything else fails, perform a clean Windows installation. The reason for Windows not booting up can be caused by various viruses and malware also if that case it would be best to format and perform a clean install.
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How to Turn off Advertising ID in Windows
In case you don’t know, Microsoft hooks up every machine that is running Windows 10 with an Advertising ID which helps them in providing Windows 10 users with relevant ads. These ads are delivered to users in the Action Center, Start Menu as well as the ads inside the UWP Applications. What makes these advertisements relevant is that they keep track of your browsing trends, likes and dislikes, with the help of the Advertising ID. However, if you are not fond of advertisements and you do not want this feature of Microsoft to track your usage, worry not for you actually have the option to disable targeted ads on your Windows 10 computer by turning off the Advertising ID. And you can do that during Windows 10 Setup or using the Group Policy Editor. For more details, refer to the instructions provided below for each one of the methods.

Option 1 – Turn off Advertising ID during Windows 10 setup

If you are about to install Windows 10, then during the installation process, your computer boots into the Install and Configure Windows 10 screen with Cortana that assist you during the setup. Once you reach the last page which is “Choose privacy settings for your device”, you will see the Advertising ID of your computer. Under the Advertising ID, you have to disable or toggle off the “Apps can use advertising ID to provide more personalized advertising in accordance with the privacy policy of the app provider” option. After you disable it, click on the Accept button to proceed with the installation. After that, the copy of your Windows 10 you are using will have the Advertising ID disabled by default.

Option 2 – Turn off Advertising ID via Group Policy Editor

  • First, tap the Win + R keys to launch the Run utility.
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  • Next, navigate to this group policy setting: Computer Configuration > Administrative Templates > System > User Profiles
  • Now double click on the “Turn off the advertising ID” option and set the radio button to Enabled. Once you do, you will see the following description on your screen:
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  • Finally, exit the Group Policy Editor and then restart your computer to apply the changes made successfully.
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Fixing PowerShell: File cannot be loaded ...
If you are using Windows PowerShell and it suddenly throws an error message saying, “File cannot be loaded because running scripts is disabled on this system”, then read on as this post will guide you on how you can fix this issue your Windows 10 computer. This kind of error in PowerShell is most likely due to the fact that your user account does not have the required permissions to execute the script. Although this does not mean that you need to have administrator-level permissions as it could also indicate that you have to be unrestricted to run these types of PowerShell scripts or cmdlets. Thus, to fix the error and carry out the task, you have to set the execution policy to be unrestricted. And to do that, you need to use the steps provided below as a reference. Step 1: To get started, you have to check what policies are set for the individual user groups on your computer by tapping the Win + X key combination or by right-clicking on the Start button and clicking on Windows PowerShell (Admin). You can also search for PowerShell in the Start Search and then right-click on Windows PowerShell and select Run as administrator. Step 2: If a User Account Control or UAC prompt appears, just click Yes to proceed. Once you’ve pulled up Windows PowerShell, type the following command to get the List of Execution Policy for all the scopes on your computer.
Get-ExecutionPolicy –List
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Set-ExecutionPolicy Unrestricted
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Set-ExecutionPolicy Unrestricted -Force
Step 6: Once you’re done, it will finally set the Execution Policy for the Windows PowerShell scripts as well as cmdlets to be Unrestricted and fix the “File cannot be loaded because running scripts is disabled on this system” error.
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Quick Workarounds to Repair Error 126

What Is Error 126?

Error 126 is a very commonly occurring error that is often the result of damaged system files of Windows. They usually occur during the installation of some Windows program or application. When Error 126 is generated, it terminates the installation process almost instantly. It is important to take corrective measures immediately to ensure that no such problems are encountered again in the future.

Solution

Restoro box imageError Causes

There are a variety of conditions that may trigger Error 126. These conditions are listed below as follows.
  • Corruption of the service-related DLL file
  • Missing or damage service-related DLL file
  • Corrupt, damaged, or Misconfigured system files
  • Improper hardware or application installations or uninstallations
  • Existence of viruses, malware, adware, or spyware in the system
  • Corrupt or incorrect registry entries in the system files
When any of the above-listed conditions occur, the corrupt system files will go to the improper links or missing information. Eventually, the problems with the files will keep the applications or programs from responding in the usual manner. Whatever are the reasons for error generation, it is of utmost importance that the error is removed to ensure smooth functioning of the system.

Further Information and Manual Repair

There are many different ways this error can be rectified. However, the two most effective solutions are listed below as follows.
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  • This solution is for novice users. Download an Error 126 repair utility program. Install it on your system. Now use it to scan your system for errors. Find out if there is an option to fix/repair error. When you come across it, click on it as soon as the scan is complete. Restart your computer. Your system is now free of Error 126.
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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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Fix Bad Image Error Status 0xc000012f
When you run a program in Windows 10, error 0xc000012f may pop up, mentioning that the files and binaries you’re trying to run are corrupted. Error 0xc000012f means Bad Image, denoting that the program’s executable or one of the supporting modules is corrupt. Or there is probably a DLL mismatch. This error usually manifests itself after a windows update or after installation of some application, in order to fix it follow the steps below:
  1. Perform SFC scan

    Press ⊞ WINDOWS + X to open the Windows menu keyboard with windows and x markedFrom the menu choose command prompt (admin) Windows menu command prompt adminIn command prompt type sfc /scannow and press ENTER Leave the computer for the operation to be completed and Reboot your computer
  2. Run DISM

    Press ⊞ WINDOWS + X to open the Windows menu keyboard with windows and x markedFrom the menu choose command prompt (admin) Windows menu command prompt adminin command prompt type: DISM.exe /Online /Cleanup-image /Restorehealth and press ENTER wait for the process to be finished and Reboot your computer
  3. Reinstall application

    If this error has been popping up after the application install remove the installed application and install it again. There is the possibility that the application installer has by accident corrupted some files, reinstalling it might fix the issue.
  4. Uninstall Windows update

    In some cases, Windows update can introduce this issue, go to Windows updates, into advanced options, and uninstall the latest update to see if this will fix the error.
  5. Install Visual C++ Redistributable

    Go to the official Microsoft website and download C++ redistributable package and install it
  6. Install new windows update

    If there is a new Windows update install, there is a chance that in the last update something went wrong and it is very likely that it was fixed in the last one.
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Fix Windows Setup Error code 0x80070006
Windows 10 setup is a bit complicated which is why it’s uncommon to encounter errors along the way. One of these errors you can encounter when running Windows Setup is the error code 0x80070006. If you are trying to fix this error, you’ve come to the right place as this post will guide you on how to do so. When you get the error code 0x80070006, you will see the following error message:
“Windows cannot install required files. Network problems may be preventing Windows from accessing the file. Make sure the computer is connected to the network and restart the installation. Error code: 0x80070006.”
As stated in the error message, this kind of error in Windows Setup is due to an unstable or unreliable network connection. Such problems can also be triggered by network hardware which includes the network adapters and the network routers. To fix this error, you need to check your internet connection and router or run the built-in network troubleshooter. You could also try using a different USB port or recreate a bootable USB drive as well as get a new Windows image file.

Option 1 – Try checking your internet connection and router

As mentioned, this Windows 10 setup error could be due to an unstable internet connection. To fix it, the first thing you have to do is to check the status of your internet connection and see if it is stable and has enough speed to run the setup. If it’s slow, then it’s no wonder that the setup process failed. To fix that, you can try to reboot your router from its admin panel or you can just turn it off manually and then turn it back on after a couple of seconds. In addition, you also have to check if it’s plugged in properly.

Option 2 – Try to run the Network Adapter troubleshooter

The next thing you can do is to run the Network Adapter troubleshooter. This built-in troubleshooter can help resolve any network issues. It can reset the adapters, remove cached settings, and many more. To run it, follow these steps:
  • Go to Settings > Update & security and from there select Troubleshoot.
  • 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.

Option 3 – Try to use a different USB port

You might want to check the integrity of the USB port where connected the device if you are using a bootable USB storage device to run the setup for Windows 10. All you have to do is switch the USB port or try to use another bootable USB device and see if it fixes the problem.

Option 4 – Try recreating the Windows 10 installation USB

Recreating the Windows 10 installation USB might help in fixing the problem. You can use a USB drive to do so but make sure that it has a great read-write speed. Follow the steps below to recreate Windows 10 installation USB”
  • Click this link and then click the Download Tool Now button.
  • Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
  • Now select the ISO file option in step 5.
  • After that, you should now have an ISO file.
  • Next, go to the location where you’ve downloaded the ISO file.
  • Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
  • Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either Nothing (clean install) or Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings since it doesn’t really work.

Option 5 – Try getting a new Windows image file

If none of the four given options above worked, you might want to get a newer installation image using the Windows Media Creation tool. After that, create the bootable USB drive and once completed and then try to run the Windows 10 setup again.
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Fix System doesn’t have any USB boot option
Lately, some users reported getting an error that says, “System doesn’t have any USB boot option, Please select other boot option in Boot Manager Menu” when they tried to reinstall the Windows 10 operating system on their PCs or boot from an installation media. If you have the same problem, then this post should help. This kind of error is applicable to multiple devices by various OEMs and is mostly due to the Secure boot being enabled, or the Legacy or CSM support being disabled. It could also be that the bootable USB device was not correctly made and so on. Whatever the cause may be, here are some suggestions you need to check out to resolve the “System doesn’t have any USB boot option, Please select other boot option in Boot Manager Menu” error and reinstall Windows 10 successfully.

Option 1 – Disable the Secure Boot in the BIOS

Disabling the Secure Boot in the BIOS settings is definitely recommended to resolve the error. To disable Secure Boot, here’s what you have to do:
  • First, boot your computer into Windows 10.
  • Next, go to Settings > Windows Update. From there, check if there is anything that you have to download and install if you see any available updates. Usually, OEMs send and update the list of trusted hardware, drivers, and operating systems for your computer.
  • After that, go to the BIOS of your computer.
  • Then go to Settings > Update & Security > Advanced Startup options. If you click on Restart Now, it will restart your computer and give you all the advanced options.
  • Next, select Troubleshoot > Advanced Options. As you can see, this screen offers you further options including System restore, Startup repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
  • Select the UEFI Firmware Settings which will take you to the BIOS.
  • From there, go to the Security > Boot > Authentication tab where you should see Secure Boot. Note that every OEM has its own way of implementing the options so it varies.
  • Next, set Secure Boot to Disabled and set Legacy Support to On or Enabled.
  • Save the changes made and exit. Afterward, your computer will reboot.

Option 2 – Try to reset the BIOS or the UEFI Settings

If updating the BIOS didn’t help in fixing Error 0199, you can try to reset the BIOS instead.
  • Start your computer and tap the F10 key during the booting process to enter the BIOS. If it does not work, you can try tapping the F1 or F2 key as well as the Del key.
  • Once you’re already in the BIOS, tap the F9 key to get the prompt to RestoreLoad default configuration now for the BIOS.
  • Next, click on Yes and then follow the next on-screen instructions that appear to set the BIOS back to its default settings.
  • Once you’re done restoring the default settings of the BIOS, restart your computer and then check if it now boots properly.

Option 3 – Make a proper bootable USB Drive/Stick

To make a proper bootable USB drive, you need to use the Windows Media Creation tool. The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.
  • After making the bootable drive, you need to plug it into your computer and then reboot.
  • Next, tap the F10 or Esc key to open the boot options.
  • Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

Option 4 – Try enabling Legacy or CSM boot support

If the Legacy or CSM boot support is disabled, then it’s no wonder why you’re getting an error. Thus, you need to enable it by following these steps:
  • Open Settings and go to Update & Security > Advanced Startup options.
  • Next, click on Restart Now to reboot your computer.
  • After that, select Troubleshoot > Advanced Options where, you will see more options such as System Restore, Startup Repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
  • From there, enable Legacy Support and then save the changes and exit. This will restart the computer.
  • Once your computer has restarted, check if the error is now fixed.
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