Logo

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.

Do You Need Help with Your Device?

Our Team of Experts May Help
Troubleshoot.Tech Experts are There for You!
Replace damaged files
Restore performance
Free disk space
Remove Malware
Protects WEB browser
Remove Viruses
Stop PC freezing
GET HELP
Troubleshoot.Tech experts work with all versions of Microsoft Windows including Windows 11, with Android, Mac, and more.

Share this article:

You might also like

How to get rid of CinematicFanatic

CinematicFanatic (by MyWay) is a browser extension for Google Chrome that may come bundled with other free software that you download off of the Internet. When installed CinematicFanatic will set the homepage and search engine for your web browser to http://search.myway.com

While browsing the internet with this extension installed, you will see additional ads, sponsored content, and even pop-up ads throughout your browsing sessions. While CinematicFanatic is active, it will log user information, visited websites, product categories. This information is later used/sold to better display targeted ads through your web pages as sponsored content and banner ads.

CinematicFanatic has been marked as a Browser Extension by several popular anti-malware scanners, and due to its information-gathering behavior, it is recommended to remove it from your computer.

About Browser Hijackers

Browser hijack is a very common type of internet fraud where your web browser configurations are modified to allow it to do things you never intend. Browser hijacker malware is developed for many different reasons. These are typically used to force visitors to predetermined sites, manipulating web traffic to generate ad revenue. Even though it may seem naive, all browser hijackers are dangerous and thus always regarded as security risks. They not only screw up your web browsers, but browser hijackers can even modify the computer registry to make your PC susceptible to other forms of hacking.

How to know if your internet browser is hijacked

There are several symptoms of browser hijacking. Here are a few of them: 1. home-page is modified 2. bookmark and the new tab are likewise changed 3. The default search page of your browser is altered 4. you’ll see multiple toolbars in your internet browser 5. you will find random pop-ups start showing regularly 6. websites load slowly and often incomplete 7. You simply can’t access particular sites, particularly anti-malware websites.

How they get into your computer or laptop

Browser hijackers could use drive-by downloads or file-sharing websites or perhaps an e-mail attachment in order to reach a targeted computer. Many web browser hijackings originate from add-on programs, i.e., browser helper objects (BHO), toolbars, or plug-ins added to browsers to provide them additional functionality. A browser hijacker could also come bundled up with some freeware which you unintentionally download to your PC, compromising your internet security. Some of the well-known hijackers are CinematicFanatic, Babylon Toolbar, Conduit Search, Sweet Page, OneWebSearch, and CoolWebSearch. Browser hijackers could disrupt the user’s web surfing experience greatly, keep track of the websites visited by users and steal financial information, cause difficulty in connecting to the net, and ultimately create stability issues, making applications and systems crash.

Browser hijacker removal

Certain browser hijacking could be easily reversed by discovering and removing the corresponding malware software through your control panel. Having said that, many hijackers are really tenacious and need specialized tools to eliminate them. Additionally, manual removals demand deep system understanding and thus can be a very difficult job for inexperienced computer users. You might opt for automatic browser hijacker removal by simply installing and running an efficient anti-malware program. One of the top tools for fixing browser hijacker infections is SafeBytes Anti-Malware. It assists you to get rid of any pre-existing malware on your system and gives you real-time monitoring and protection from new threats. Together with the antivirus tool, a system optimizer, such as SafeBytes’s Total System Care, will help you in removing all related files and modifications in the computer registry automatically.

What To Do When You Cannot Download Safebytes Anti-Malware?

Viruses could cause a lot of damage to your PC. Some malware is designed to interfere with or block things that you’d like to do on your personal computer. It may not allow you to download anything from the net or it will stop you from accessing a few or all of the sites, especially the antivirus sites. If you’re reading this, chances are you’re stuck with a malware infection that is preventing you to download and/or install the Safebytes Anti-Malware program on your PC. Refer to the instructions below to remove malware in alternate ways.

Install in Safe Mode

In Safe Mode, you can change Windows settings, uninstall or install some applications, and get rid of hard-to-delete viruses and malware. In case the malicious software is set to load automatically when the PC starts, shifting into this particular mode may prevent it from doing so. In order to get into Safe Mode or Safe Mode with Networking, press the F8 key while the computer is starting up or run MSCONFIG and look for the “Safe Boot” options under the “Boot” tab. Once you’re in safe mode, you can try to install your anti-malware software program without the hindrance of the virus. Now, you can run the anti-malware scan to remove viruses and malware without hindrance from another application.

Switch to an alternate browser

Web-based malware could be environment-specific, targeting a particular browser or attacking specific versions of the browser. If you appear to have a virus attached to Internet Explorer, then switch to a different browser with built-in safety features, such as Firefox or Chrome, to download your preferred antivirus program – Safebytes.

Install and run anti-virus from the USB drive

Another solution is to store and operate an antivirus software program entirely from a Thumb drive. Adopt these measures to use a USB drive to clean your corrupted PC. 1) Download the anti-malware on a virus-free PC. 2) Plug the Flash drive into the uninfected computer. 3) Double-click the Setup icon of the anti-malware software to run the Installation Wizard. 4) When asked, select the location of the pen drive as the place where you would like to put the software files. Follow the instructions on the computer screen to finish off the installation process. 5) Transfer the USB drive from the uninfected computer to the infected computer. 6) Double-click the EXE file to run the Safebytes program right from the pen drive. 7) Hit the “Scan Now” button to start the malware scan.

SafeBytes Anti-Malware - More Protection For You

If you’re looking to purchase anti-malware for your computer, there are various brands and utilities for you to consider. A few of them are excellent, some are ok types, and some will damage your computer themselves! While looking for antivirus software, choose one that provides reliable, efficient, and complete protection against all known viruses and malware. Amongst few good applications, SafeBytes Anti-Malware is the highly recommended software for the security-conscious user. SafeBytes can be described as a highly effective, real-time antivirus application that is created to assist the regular computer end user in protecting their computer from malicious threats. This tool can easily identify, remove, and protect your PC from the most advanced malware intrusions including spyware, adware, trojan horses, ransomware, worms, PUPs, parasites along other potentially harmful software applications.

SafeBytes carries a variety of features that can help you protect your PC from malware attacks and damage. A few of them are given as below:

Best AntiMalware Protection: By using a critically acclaimed malware engine, SafeBytes offers multilayered protection that is designed to catch and remove viruses and malware that are concealed deep inside your computer system. Real-Time Protection: SafeBytes gives round-the-clock protection for your computer limiting malware attacks instantly. This utility will always monitor your PC for suspicious activity and updates itself regularly to keep abreast of the latest threats. Safe Browsing: Safebytes allots all websites a unique safety score that helps you to get an idea of whether the website you’re about to visit is safe to view or known to be a phishing site. Fast Multi-threaded Scanning: SafeBytes’s virus scan engine is one of the fastest and most efficient within the industry. It's targeted scanning tremendously increases the catch rate for viruses that are embedded in various computer files. Light-weight Tool: SafeBytes is a lightweight and easy-of-use antivirus and anti-malware solution. As it uses minimal computer resources, this application leaves the computer’s power exactly where it belongs to: with you. Premium Support: You will get 24/7 technical support to quickly resolve any issue with your security tool. SafeBytes will keep your computer safe from most advanced malware threats automatically with hardly any input needed from you again. Now you may understand that this software does more than just scan and remove threats on your PC. If you’re trying to find a comprehensive anti-malware program that’s still simple enough to use, SafeBytes Anti-Malware is exactly what you will need!

Technical Details and Manual Removal (Advanced Users)

If you don’t want to use a malware removal software and prefer to get rid of CinematicFanatic manually, you may do so by going to the Windows Add/Remove Programs menu in the Control Panel and delete the offending program; in cases of web browser plug-ins, you could remove it by going to the browser’s Add-on/Extension manager. It is also recommended to factory reset your web browser settings to their default state. Lastly, check your hard drive for all of the following and clean your registry manually to get rid of leftover application entries after uninstallation. Please note that only professional users should try to manually edit the registry because removing any single critical system file leads to a serious problem or even a system crash. In addition, some malware is capable of replicating itself or preventing its deletion. It is advised that you do the removal process in Windows Safe Mode.
Files: %UserProfile%\Local Settings\Application Data\Google\Chrome\User Data\Default\Sync Extension Settings\bpkmogbhibhnpebcaipnknfkgibdheoc %LOCALAPPDATA%\Google\Chrome\User Data\Default\Local Extension Settings\bpkmogbhibhnpebcaipnknfkgibdheoc %UserProfile%\Local Settings\Application Data\Google\Chrome\User Data\Default\Local Extension Settings\bpkmogbhibhnpebcaipnknfkgibdheoc %LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions\bpkmogbhibhnpebcaipnknfkgibdheoc %UserProfile%\Local Settings\Application Data\Google\Chrome\User Data\Default\Extensions\bpkmogbhibhnpebcaipnknfkgibdheoc %LOCALAPPDATA%\CinematicFanaticTooltab %UserProfile%\Local Settings\Application Data\CinematicFanaticTooltab Registry: HKEY_LOCAL_MACHINE\Software\CinematicFanatic HKEY_LOCAL_MACHINE\Software\Wow6432Node\CinematicFanatic HKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..Uninstaller CinematicFanaticTooltab Uninstall Internet Explorer
Read More
A Quick Guide to Fixing Ntdll.dll Error Code

Ntdll.dll Error - What is it?

Ntdll.dll is a type of DLL (Dynamic Link Library) error. DLL errors are some of the most common but complicated errors to troubleshoot and resolve by PC users. The Ntdll.dll error message is displayed in the following formats:
  • "STOP: 0xC0000221 unknown hard error C:WinntSystem32Ntdll.dll
  • "NTDLL.DLL Error!"
  • "STOP: C0000221 unknown hard error SystemRootSystem32ntdll.dll"
  • "[PROGRAM NAME] caused a fault in module NTDLL.DLL at [ANY ADDRESS]"
  • "AppName: [PROGRAM NAME] ModName: ntdll.dll"
  • "Crash caused in ntdll.dll!"
  • "Unhandled exception at [ANY ADDRESS] (NTDLL.DLL)"
You may come across the ‘Ntdll.dll error’ pop-up either when you try to run a program or after using it or while the program is running. It may also appear when Windows starts or shutdowns or even during Windows installation.

Solution

Restoro box imageError Causes

The Ntdll.dll error code can be triggered due to numerous reasons such as:
  • DLL file corruption due to hard drive bad entries
  • Missing DLL files
  • Corrupt hardware drivers
  • Viruses
  • DLL file misconfiguration
It is recommended to resolve this error code immediately on your PC to avoid inconvenience and serious PC damages like program lockouts, system failure, freeze, and crash

Further Information and Manual Repair

All the causes for ‘Ntdll.dll’ are linked with the registry. The registry is the main database of your system. It saves all the activities and files on your PC including the important data file and unnecessary files such as the junk files, temporary internet files, and obsolete files, files of the programs installed, bad entries, invalid registry keys, and cookies. These files take up also hard drive space thereby causing dll file damage, disk fragmentation, and data overload. Ntdll.dll error may also occur to due viral infection and malware attack. There are 2 ways to resolve the Ntdll.dll error. One is to install 2 separate tools, the registry cleaner, and antivirus, and run them separately to scan for errors. This option is time-consuming and running an antivirus can also slow down the speed of your computer. Therefore we recommend that you opt for the second alternative that is to download Restoro.

Why Restoro.

  • This is an advanced, innovative, and multi-functional PC repair tool embedded with several powerful PC repair utilities like a registry cleaner, an antivirus, and a system optimizer. This is a one-stop solution for all your PC errors.
  • It is user-friendly, safe, efficient, and compatible with all Windows versions. The registry cleaning feature scans for all registry issues.
  • It wipes out all the unnecessary files from the hard drive, repairs the damaged dll files, and restores the registry, thereby resolving the Ntdll.dll error code right away.
  • The privacy error utility functions like an antivirus. It detects and removes all the malicious software like viruses, malware, Trojans, and spyware. Simultaneously, the system optimizer feature boosts the PC speed.
Click here to download Restoro and resolve the Ntdll.dll error on your PC today!
Read More
New calculator features in Windows 11 and more
Calculator GraphingWindows 11 will bring some old applications in new looks and some will get additional features as well. One of the old apps that will get new stuff is a calculator. The calculator was always a way to go application for quick calculations but Microsoft aims to expand on that and make the calculator a little more useful. The first thing that you will notice is the calculator look, the calculator has now an application theme setting that allows you to change the look of the application. It comes in standard and professional mode as usual but this time calculator will come with features that will enable it to handle some programming and engineering tasks. The new calculator features a full graphing mode that lets you visually analyze a graph to identify key features. It also packs a deep converter that can switch between more than 100 units and currencies.

Other Windows 11 apps

A new snipping tool will be delivered with this latest update as well packed with new functionality. We have covered new features of the snipping tool in another article, if you are interested you can find the article here: https://errortools.com/windows/new-snipping-tool-redesigned-in-windows-11/ Mail and Calendar apps will also get a redesign, sadly all redesign that they will include will be of visual nature to fit in the overall Windows 11 theme, functionality will remain the same.
Read More
How to reset TCI/IP stack in Windows

TCI/IP or as known as Internet protocol is one that controls packets that are sent over the internet and makes sure that each one has reached its destination so you can pleasantly browse your favorite websites. The setting for the given protocol is stored locally on your machine and most of the time, everything works fine and good, but sometimes, these settings can get corrupted.

tcp/ip reset protocol

Malware or other software can temper with setting making TCP/IP making it wrong and throwing nondescript connection errors in your face. If you are faced with this issue worry not because fixing this issue is really easy.

Before we actually go and fix the issue please do scan your system with your protection suite just to be sure that if there is any kind of malware on the system it is properly removed from it.

Resetting TCP/IP

First thing is to open search and find PowerShell, press the Windows key on the keyboard, and type in PowerShell so search results are shown. Click on Run as administrator to open PowerShell in elevated mode.

Once PowerShell is opened type indie it:

netsh IP reset and press ENTER. The task will start executing and at this point you will see a lot of Resetting, OK! messages. Once everything is finished restart your PC and you are good to go.

Read More
Fix SPECIAL POOL DETECTED MEMORY CORRUPTION
If you suddenly encounter the SPECIAL POOL DETECTED MEMORY CORRUPTION Blue Screen error with a bug check value of “0x000000C1” while you are using your computer then it might be due to some problem with the hardware of your Windows 10 computer. According to security experts, it is most likely caused by the physical RAM which could be due to some error in the Realtek driver for Wireless USB 2.0 as well as corruption of the files inside the RAM, and so on. This kind of problem indicates that the driver wrote to an invalid section of the special pool. On the other hand, system files like the rtwlanu.sys or nvlddmkm.sys can also trigger the SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION Blue Screen error. To resolve this Blue Screen error, you can use the options provided below as reference but before you do that, make sure to create a System Restore point first. After you have that covered, proceed to the given options below.

Option 1 – Delete the settings of the Driver Verifier Manager

  • Open the Driver Verifier Manager using the Start search.
  • After that, select or click on the “Delete existing settings” option and then click on Finish.
  • Reboot your computer and see if it fixes the Blue Screen error or not.

Option 2 – Try to update or rollback your Network driver

If you have updated the driver software as of late and you suddenly got this BSOD 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 “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.
  • From the list of Network Drivers, look for “Realtek <Model> Wireless LAN 802.11n PCI-E NIC” and then right-click on it and select Update Driver.
  • Restart your PC and see if it helped in fixing the BSOD error.
Note: If you see any of the following entries under the Network drivers, you might want to download their latest available versions from each one of their manufacturer’s websites.
  • Realtek High-Definition (HD) Audio Driver
  • Realtek Card Reader Driver
  • Realtek Local Area Network (LAN) Driver
On the other hand, if updating the Network driver didn’t help, you can also try to roll back to its previous version.
  • Open the Device Manager again and then look for Network Drivers.
  • Next, select Realtek <Model> Wireless LAN 802.11n PCI-E NIC from the list of Network Drivers and then 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 the Realtek driver.
  • Now restart your computer to successfully apply the changes made.

Option 3 – Try running the ChkDsk utility

You can also run the ChkDsk utility to fix the SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION Blue Screen error.
  • First, open This PC and right-click on your operating system partition for Windows.
  • Next, click on Properties and navigate to the Tools tab.
  • Then click on Check under the Error Checking section.
  • After that, a new mini window will be opened and from there click on Scan drive and let it scan your disk drive partition for any errors and then restart your computer.

Option 4 – Use the Windows Memory Diagnostics

Since the problem has something to do with the physical RAM, you need to use Windows Memory Diagnostics. To run it, refer to these steps:
  • Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
  • After that, it will give two options such as:
    • Restart now and check for problems (Recommended)
    • Check for problems the next time I start my computer
  • Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.
Note: After you select the option, your PC will restart and check for memory-based issues. If it finds any issues, it will automatically fix them.

Option 5 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION. It can be found in the Settings Troubleshooters page. To use it, refer to these steps:
  • Tap the Win + I keys to open the Settings panel.
  • Then go to Update & Security > Troubleshoot.
  • From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.
Read More
MSASCui.exe - Quick Fix Guide
MSASCui.exe is a digitally signed file from Microsoft located in folder C:\Program Files\Windows Defender. It is a component of Microsoft Windows Defender Antispyware. This file is responsible for performing spyware scans. It is already installed in Windows Vista operating system. MSASCui.exe becomes an error code when it is found in another path. It is categorized as a Windows runtime error.

Solution

Restoro box imageError Causes

The cause of MSASCui.exe error is triggered by:
  • Corrupt or damaged registry entries
  • Virus Infection
The potential risks of MSASCui.exe error are:
  • Slow PC performance
  • Data loss
When this file becomes an error, it will display messages like:
“This application has failed to start to run on Windows because MSASCUI.exe cannot be found.” “Windows Defender cannot work properly and protect the Windows system effectively”
The message will keep popping up on your computer screen time and again.

Further Information and Manual Repair

When you experience an MSASCui.exe error on your PC, it is advisable to fix and repair it immediately before it causes serious damages to your system. Here are some DIY quick solutions to repair MSASCui.exe error:

Solution 1:

If the speed of your PC reduces significantly and you also see MSASCui.exe error message pop on your screen, then in this case it is advisable to uninstall the Windows Defender program from your PC. To do so, follow these instructions:
  • First, open the Windows Task Manager by pressing the “Ctrl, “Alt” and “Delete” keys on the keyboard.
  • Now click the ‘Processes’ tab. This will show the currently running processes on your system.
  • Scroll down and click on “MSASCui.exe” and then end the process. This will stop the program from running on your PC.
  • After this go to the start menu and double click on ‘My Computer’ and click on the C drive.
  • Choose the option ‘Program Files’ and then click on the ‘Windows Defender’ folder.
  • Now to delete this folder, right-click and select ‘delete’. This will uninstall the program, fix the MSASCui.exe error, and also improve the performance of your PC.

Solution 2:

If you find the MSASCui.exe file located in some other path, then this is an indication of a virus. In this case, it is recommended to run an antivirus program on your PC to scan and delete all viruses. If you don’t have an antivirus program already installed on your system, then you should download it. Once antivirus software is downloaded, simply run it to scan viruses and then click on delete to remove all the viruses on your system. This will help you resolve the MSASCui.exe error caused by malware on your PC right away.
Read More
Fix Windows Upgrade Error 0x800F081E – 0x20003
If you are trying to run Windows Upgrade on your Windows 10 computer but suddenly interrupted by the error 0x800F081E – 0x20003, worry not for this post will guide you on how you can fix this Windows Upgrade error. This particular Windows Upgrade error is a Windows status code for CBS_E_NOT_APPLICABLE which indicates that some of the update requirements are missing or the files that are installed are already of a higher version compared to the ones that are still pending. In most cases, this error occurs when you try to upgrade to earlier versions of the Windows 10 N edition to a later version. Here’s the full content of the error message:
“0x800f081E-0x20003, The installation failed in the SECOND_BOOT phase with an error during BOOT operation”
In case you don’t know, Microsoft distributes special “N” editions of Windows in Europe and the “KN” editions in Korea. These editions are the same as the standard editions of Windows except that they do not have the Windows Media Player as well as the multimedia playback features. Thus, when the Windows Upgrade fails with the error code and error message and it doesn’t provide much information as to why the update couldn’t be installed, there is something you can do about it to fix the error. Since Windows uses generic error codes and so if you see the error code 0x800f081e, you have to check the error log first. For more details, follow the instructions laid out below. Step_1: You need to navigate to C:$WINDOWS.~BTSourcesPanther and from there look for the text file named “setuperr.log” and open it with a text viewer/editor program like Notepad. Step_2: After opening the setuperr.log file, you should see content that’s similar to this:
C:WINDOWSSoftwareDistributionDownload80b2677d6e15a2a206625bb25a7124feamd64_Microsoft-Windows-MediaPlayer-Package~~AMD64~~10.0.17134.1. Error: 0x800F081E 2019-09-10 20:26:57, Error SP Operation failed: Add [1] package C:WINDOWSSoftwareDistributionDownload80b2677d6e15a2a206625bb25a7124feamd64_Microsoft-Windows-MediaPlayer-Package~~AMD64~~10.0.17134.1. Error: 0x800F081E[gle=0x000000b7]
Note: From the content above, it is clear that the Windows Upgrade failed due to complete due to the Windows Media Player. It could be that the log file may contain other error messages and other error codes and if you see the error code 0x800f081e from the list, then you need to uninstall the Media Feature Pack. Step_3: You have to uninstall the Media Feature Pack.
  • Tap the Win + R keys to launch the Run dialog box and type “optionalfeatures.exe” in the field and hit Enter to open the Windows Features wizard.
  • Next, you need to wait until the list of Windows Features populates and then click on the + sign to collapse the folder of the Media Features.
  • After that, uncheck the “Windows Media Player” option from the Media Features folder.
  • Now click on the Yes and OK buttons to save the changes made and then close the Windows Features dialog box.
  • Restart your computer and boot, try to run the Windows Upgrade process again, and check if the error is fixed or not.
Note: If the installation has been successfully completed, you have to go back to the Windows Features and enable the Windows Media Player again. And if you are using the Windows 10 N Edition, then you can just download and install the latest version of the Media Feature Pack for your Windows 10 N edition. On the other hand, running the built-in Windows Update troubleshooter could also help you resolve any Windows Update-related problems, including the error 0x800F081E – 0x20003. 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.
Read More
Fix 0xd00000e5, 0x8007139f, 0x80090030 PIN
The quickest and easiest way to log into your computer is when you use the PIN feature in Windows 10. Even though it is a bit slower compared to biometric logins such as Fingerprint and Iris scanning that comes under Windows Hello, the PIN feature is definitely less complicated. However, just like any other module of the software, it is also prone to some errors. In this post, you will be guided in fixing several PIN errors such as 0xd00000e5, 0x8007139f, and 0x8009003. These errors could be caused at different points in time like when you change or create a PIN or when you log into your computer. To fix the 0xd00000e5, 0x8007139f and 0x8009003 PIN errors, there are various solutions you can try. You may empty the contents of the NGC folder or remove and change the PIN or the password. You could also use the Group Policy Editor or reset the ACLs in the NGC folder as well as run built-in tools like System File Checker and the DISM tool.

Option 1 – Take ownership of the NGC folder and delete its contents

  • Boot your computer first into Safe Mode.
  • Next, you need to take ownership of the Ngc folder first and you can do that using Command Prompt.
  • Type “command prompt” in the Windows Search bar and then right-click on the relevant search result and select “Run as administrator”.
  • After that, if a User Account Control or UAC prompt appears, just click on Yes to proceed.
  • Next, type and enter this command: TAKEOWN /F C:WindowsServiceProfilesLocalServiceAppDataLocalMicrosoftNgc
  • Note that the <path> is the location of the folder or file in File Explorer.
  • Now type and enter this second command: ICACLS C:WindowsServiceProfilesLocalServiceAppDataLocalMicrosoftNgc /grant administrators:F
  • Finally, once the command has been executed, restart your computer.
  • Once your computer has restarted, delete all the contents in the Ngc folder and check if the error is now fixed.

Option 2 – Try to remove and change the PIN or password

The 0xd00000e5, 0x8007139f, and 0x8009003 PIN errors could be caused by some conflicting issues with the PIN or password you have set for the User Account of your computer. Thus, you have to remove or change the PIN or password to fix these PIN errors.
  • Remove the PIN by going to Settings > Accounts > Sign-in options.
  • From there, go to the PIN section and click on the Remove button.
  • You will be asked to verify your account to proceed in removing the PIN, enter your credentials.
  • Restart your computer and then set up a new PIN.
  • Once you’re done, restart your computer and check if the error is gone now.

Option 3 – Try to use the Group Policy Editor

  • Tap the Win + R keys to open the Run utility and type “gpedit.msc” in the field and tap Enter to open the Group Policy Editor.
  • Next, navigate to this policy setting: Computer Configuration > Administrative Templates > System > Logon
  • After that, double click on the “Turn on convenience PIN Sign-in” option located on the right-side panel.
  • Then set its radio button to Enabled. You will see the following description when you do so:
“This policy setting allows you to control whether a domain user can sign in using a convenience PIN. If you enable this policy setting, a domain user can set up and sign in with a convenience PIN. If you disable or don’t configure this policy setting, a domain user can’t set up and use a convenience PIN. Note: The user’s domain password will be cached in the system vault when using this feature. To configure Windows Hello for Business, use the Administrative Template policies under Windows Hello for Business.”
  • After setting the radio button to Enabled, it will turn on the Logins in your computer using the PIN.
  • Close the Group Policy Editor and restart your computer for the changes to take effect.

Option 4 – Try to reset the ACLs in the Ngc folder

  • Type “command prompt” in the Windows Search bar and then right-click on the relevant search result and select “Run as administrator”.
  • After opening Command Prompt with admin privileges, execute this command: C:/Windows/Service/Profiles/Local/Service/AppData/Local/MicrosoftNgc /T /Q /C /RESET
  • The command you entered will start checking for errors and fix them automatically.

Option 5 – Run the System File Checker scan and the DISM tool

System File Checker:

  • 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.
  • Now restart your computer.

DISM tool:

  • Open Command Prompt.
  • Then type in the following commands and make sure to hit Enter right after you type each one of them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • Dism /Online /Cleanup-image /Restorehealth
  • After that, wait until the process is finished and do not close the window as the process will probably take a couple of minutes.
  • Once it’s done, restart your computer.
Read More
How to remove Converters now

Converters Now developed by Mindspark Interactive is a Browser Extension for Google Chrome and is promoted at their website like a very useful tool for converting PDF and Doc files, alongside with dictionary, and other useful tools. While this might appeal to you the extension hijacks your New Tab page, changing it to Search.MyWay.com

While active, this extension monitors user’s online activity, recording visited websites, clicked links, bought products, and other browsing information. This information is later forwarded or sold to Mindsparks ad network to better deliver user Targeted Ads.

Browsing the internet with ConvertersNow will result in displaying additional ads, sponsored content, and sometimes even pop-up ads injected into various pages or websites throughout your browsing sessions. CovertersNow has been marked as a Browser Hijacker by several anti-virus programs and it is marked for removal.

About Browser Hijackers

Browser hijacking is actually a type of unwanted software, commonly a browser add-on or extension, which then causes modifications in the web browser’s settings. There are plenty of reasons why you may experience a web browser hijack; however commercial, advertising, and marketing are the major purposes for their creation. Usually, the idea would be to force users to visit particular websites that are aiming to improve their site visitor traffic and generate higher ad income. Though it might appear harmless, these tools were created by vicious individuals who always try to take advantage of you, so that they can easily earn money from your naivety and distraction. Browser hijackers could also let other vicious programs without your knowledge further damage your PC.

How you can recognize a browser hijack

Signs that an internet browser is hijacked include: the home page of your respective web browser is changed all of a sudden; your web browser is constantly being redirected to pornography websites; default web engine is changed; you are finding new toolbars you haven’t witnessed before; unstoppable flurries of popup ads show up on your computer screen; your web browser starts running sluggishly or presents frequent glitches; Inability to navigate to certain sites, particularly anti-malware and also other security software websites.

So how does a computer get infected with a browser hijacker

Browser hijackers could use drive-by downloads or file-sharing networks or even an e-mail attachment in order to reach a targeted computer system. Many web browser hijackings come from add-on applications, i.e., browser helper objects (BHO), toolbars, or plug-ins added to browsers to provide the extra features. Also, certain freeware and shareware can put the hijacker inside your computer through the “bundling” technique. Some of the most well-known hijackers are ConvertersNow, Conduit Search, Babylon Toolbar, OneWebSearch, Sweet Page, and CoolWebSearch. Browser hijackers might record user keystrokes to collect potentially important information leading to privacy issues, cause instability on systems, drastically disrupt user’s browsing experience, and eventually slow down the PC to a stage where it becomes unusable.

Removal

Some hijackers could be removed by deleting the freeware they were included with or by eliminating any extension you’ve recently added to your computer. Having said that, most hijackers are quite tenacious and need specialized applications to eradicate them. Furthermore, manual removals require deep system knowledge and therefore can be very difficult task for beginner computer users. You might opt for automatic browser hijacker removal by just installing and running efficient anti-malware software. If you want to eliminate persistent hijackers quickly and effectively, install the top-rated, award-winning Anti-Malware tool Safebytes Anti-Malware.

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

Malware can cause several kinds of damage to computing devices, networks, and data. Certain malware goes to great lengths to prevent you from installing anything on your computer system, particularly anti-virus software. If you’re reading this article now, you might have perhaps recognized that a malware infection is the cause of your blocked web traffic. So what to do when you want to download and install an anti-malware program such as Safebytes? Although this kind of issue will be tougher to circumvent, there are some actions you can take.

Install in Safe Mode

If the malware is set to load immediately when Windows starts, entering safe mode could block the attempt. Since only the minimal applications and services start-up in Safe Mode, there are seldom any reasons for issues to occur. You will have to do the following to remove malware in Safe mode. 1) At power-on/startup, hit the F8 key in 1-second intervals. This should bring up the Advanced Boot Options menu. 2) Make use of the arrow keys to choose Safe Mode with Networking and hit ENTER. 3) When this mode loads, you will have an internet connection. Now, use your web browser to download and install Safebytes. 4) After installation, do a complete scan and let the software program remove the threats it finds.

Download the security software using a different internet browser

Certain viruses may target vulnerabilities of a specific browser that obstruct the downloading process. If you’re not able to download the security software using Internet Explorer, this means malware may be targeting IE’s vulnerabilities. Here, you must switch to another web browser like Chrome or Firefox to download the Safebytes application.

Create a portable USB antivirus for removing viruses

Another way is to download and transfer an anti-malware program from a clean PC to run a scan on the infected computer. Try these simple steps to clear up your affected computer using portable anti-malware. 1) Download Safebytes Anti-Malware or Microsoft Windows Defender Offline onto a clean PC. 2) Insert the pen drive on the same computer. 3) Double-click on the downloaded file to run the installation wizard. 4) Choose the drive letter of the USB drive as the location when the wizard asks you where you would like to install the anti-virus. Follow the instructions to complete the installation process. 5) Now, plug the pen drive into the infected system. 6) Double-click the EXE file to open the Safebytes tool from the pen drive. 7) Simply click “Scan Now” to run a complete scan on the infected computer for malware.

Benefits and Features of SafeBytes Security Suite

In order to protect your personal computer from a variety of internet-based threats, it’s important to install an anti-malware program on your personal computer. But with countless numbers of antimalware companies out there, these days it’s hard to decide which one you should buy for your personal computer. A few of them do a good job in eradicating malware threats while many will ruin your PC by themselves. You need to pick out a tool that has got a good reputation and detects not only computer viruses but other kinds of malware also. When considering trustworthy software programs, Safebytes Anti-Malware is undoubtedly the strongly recommended one. Safebytes is one of the well-established PC solutions firms, which offer this all-inclusive anti-malware program. Using its outstanding protection system, this utility will automatically detect and eliminate most of the security threats, which include viruses, adware, browser hijackers, PUPs, trojans, worms, and ransomware.

There are lots of amazing features you will get with this particular security product. Listed below are some of the highlighted features included in the product.

Anti-Malware Protection: Using a critically acclaimed anti-malware engine, SafeBytes offers multilayered protection which is designed to catch and eliminate threats which are concealed deep in your PC. Live Protection: SafeBytes provides real-time active supervision and protection from all known computer viruses and malware. It will constantly monitor your pc for hacker activity and also provides end-users with advanced firewall protection. Safe Browsing: Through its unique safety score, SafeBytes notifies you whether a website is safe or not to visit it. This will make sure that you’re always certain of your safety when browsing the world wide web. High-Speed Malware Scanning Engine: SafeBytes’s very fast malware scanning engine cuts down scan times and extends battery life. At the same time, it’ll effectively detect and remove infected files or any internet threat. Lightweight: SafeBytes is a lightweight application. It consumes a very small amount of processing power as it works in the background therefore you won’t observe any computer performance difficulties. 24/7 Online Tech Support: You can get high levels of support 24/7 if you are using their paid software. To conclude, SafeBytes Anti-Malware is pretty great for securing your computer against all sorts of malware threats. There is no doubt that your computer system will be protected in real-time once you put this software program to use. For top protection and the best value for money, you can’t get better than SafeBytes Anti-Malware.

Technical Details and Manual Removal (Advanced Users)

If you’d like to carry out the removal of ConvertersNow manually instead of employing an automated tool, you may follow these steps: Proceed to the Windows Control Panel, click on the “Add/Remove Programs” and there, choose the offending program to remove. In case of suspicious versions of web browser extensions, you can easily get rid of them via your browser’s extension manager. It’s also advised to factory reset your web browser to its default condition to fix corrupt settings. If you decide to manually delete the system files and Windows registry entries, use the following checklist to make sure you know precisely what files to remove before executing any actions. But bear in mind, this is often a tough task and only computer professionals could accomplish it safely. Furthermore, certain malicious programs are capable to defend against its removal. Doing this malware-removal process in Safe Mode is recommended.
Files: %UserProfile%\Local Settings\Application Data\ConvertersNowTooltab %LOCALAPPDATA%\Google\Chrome\User Data\Default\Sync Extension Settings\jbfdncemokhjnhoiohfdjahheefaiaec %UserProfile%\Local Settings\Application Data\Google\Chrome\User Data\Default\Sync Extension Settings\jbfdncemokhjnhoiohfdjahheefaiaec %LOCALAPPDATA%\Google\Chrome\User Data\Default\Local Extension Settings\jbfdncemokhjnhoiohfdjahheefaiaec %UserProfile%\Local Settings\Application Data\Google\Chrome\User Data\Default\Local Extension Settings\jbfdncemokhjnhoiohfdjahheefaiaec %LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions\jbfdncemokhjnhoiohfdjahheefaiaec %UserProfile%\Local Settings\Application Data\Google\Chrome\User Data\Default\Extensions\jbfdncemokhjnhoiohfdjahheefaiaec Registry: HKEY_LOCAL_MACHINE\Software\Wow6432Node\ConvertersNow HKEY_LOCAL_MACHINE\Software\ConvertersNow HKEY_LOCAL_MACHINE\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings, value: jbfdncemokhjnhoiohfdjahheefaiaec HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\DOMStorage\convertersnow.dl.tb.ask.com HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\DOMStorage\convertersnow.dl.myway.com HKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..Uninstaller ConvertersNowTooltab Uninstall Internet Explorer
Read More
Dune part two is officially green-lighted
Dune, arguably one of the best science fiction novels ever written was brought to a big screen first time by David Linch. Sadly movie itself went through development hell and a lot of troubles and the end result was somewhat strange. The audience was divided on it, some hated it, some loved it but for sure it left a mark in cinema history. Years have passed and just when people forgot about ever receiving another try on a book adaptation Denis Villeneuve has brought his vision of Frank Herbert's novel into its full glory on a big screen. The interesting thing about this new Dune movie was that from the start Denis envisioned it as a two-movie part openly saying that book itself is too complex to be done in a single movie. But, the issue arises when information about Dune part two was hanging on a thread on how well Dune part one will be received and performed in the box office. This naturally brought all kinds of speculation and worry among fans of the franchise, especially because the movie itself was really good and well made. Well for all of you fans and people who wanted to see a continuation of the story can rest at peace now since the Legendary picture has officially announced and green-lighted Dune part two. The budget was given and we can expect part two at the beginning of 2023. dune 2 annoucment
Read More
1 2 3 171
Logo
Copyright © 2023, ErrorTools. All Rights Reserved
Trademark: Microsoft Windows logos are registered trademarks of Microsoft. Disclaimer: ErrorTools.com is not affiliated with Microsoft, nor claims direct affiliation.
The information on this page is provided for information purposes only.
DMCA.com Protection Status