Advice when you have broken key on a keyboard

In case you don’t know, Groove Music is due to retire its OneDrive streaming service this month. Despite that being the case, there is actually a workaround you can try to still continue enjoying music streaming. The app also allows you to play your own local files and if required, you can also modify or tailor the experience with new features – for instance, Groove Music brings an Equalizer to the settings of the app. As the name suggests, the equalizer allows you to tweak frequency responses to your liking. On top of being able to tweak individual bands, the equalizer supports few pre-set settings to enable quick changes. This post will guide you on the process of accessing and using the equalizer in the Groove Music app. To get started, refer to the instructions provided below. Step 1: You need to make sure that you are running the latest version of the Groove Music app or version 10.18011.1211.0 or higher in order to use the equalizer in Groove Music. If needed, you can check the version number from Windows Store. Step 2: Open Windows Store and then click on the ellipses icon and select the Downloads and Updates option. Step 3: Next, search for Groove Music and check its version number. Step 4: Now that you’ve verified the version number of Groove Music, you need to open the equalizer setting. It is enabled by default and to access it, click on the gear icon for Settings and select equalizer under the Playback settings. Step 5: After that, the Equalizer window will pop up. It is where you can configure the equalizer settings using the drop-down menu. Here are the following presets you can choose from:

• Flat
• Treble Boost
• Bass Boost
• Headphones
• Laptop
• Portable speakers
• Home Stereo
• TV
• Car
• Custom

Step 6: Drag the dots upwards or downwards to set your own preferences, as needed. Note: The only downside to this setting is that there is no shortcut available for quick access as you have to navigate through the Settings section manually to access it and change the preset configurations. In addition, the Groove Music app also works on the mobile version of Windows 10.

When you try to open a website but instead encounter an “Access Denied, You don’t have permission to access on this server” error message along with the ULR which you aren’t able to access with a reference number, then it is most likely caused by some network-related issue in your browser. Note that this error mostly occurs on Firefox browsers. The “Access Denied” error appears when your Mozilla Firefox browser uses a different proxy setting or VPN instead of what’s really set on your Windows 10 PC. Thus, when a website detected that there is something wrong with your browser cookies or your network, it blocks you which is why you can’t open it. To resolve this error, here are some suggestions you can try. And if you got the same error message on a different browser, you can still follow the possible solutions given below.

Option 1 – Try clearing everything about the website

• Open your browser and tap the Ctrl + H keys on your keyboard.
• After that, look for the listing of the website from your browser history and right-click on it.
• Then select the “Forget about this site” option. This will get rid of all the data such as browsing history, cache, cookies, and passwords. Thus, if you have a password saved or other important data of the website, you have to save it first before you tap the Ctrl + H keys.

Option 2 – Try disabling the VPN

As pointed out earlier, if you are using VPN, this could be the reason why you’re getting the “Access Denied” error so the most obvious thing to do is for you to turn off the VPN and try to run the Windows Update once more. And if you use a VPN software that works using their software, you can just completely exit or log-off from its account. On the other hand, if you are using a built-in Windows 10 VPN, you can simply turn it off or delete all the settings you have created there.

Option 3 – Uninstall the VPN service you are using or use a different provider

If you disabling the VPN service worked in fixing the “Access Denied” error, you might want to uninstall it. As mentioned, website administrator blocks IP ranges if they notice any malicious activities and because of this, your IP address might fall into the banned range even if you didn’t do anything at all. To uninstall the VPN service, follow the steps below.

• Tap the Win + R keys to open the Run dialog box
• Then type “appwiz.cpl” in the field and hit Enter to open the Programs and Features in Control Panel.
• From there, look for the VPN service you are using, select it and then click on Uninstall to remove it.
• After that, restart your computer and try to install the latest version of the program again. It should work now. If not, proceed to the next available option below.

Option 4 – Try disabling the proxy server for your LAN

If your PC was just attacked by some adware or malware as of late, it is possible that it has changed the network settings in the system and might display spam advertisements. Thus, you have to disable the proxy server for your LAN. To do that, refer to these steps:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

In this post, you will be guided on how you can fix error 0x80070013 while executing various operations in your Windows 10 computer like System Restore, Windows Backup, or Windows Updates. When you encounter error 0x80070013, you will see the following error messages. For System Restore, it states:

“System Restore did not complete successfully. Your computer’s system files and settings were not changed. Details: System Restore failed while scanning the file system on the drive <Partition Letter> The drive might be corrupt. You might want to retry System Restore after running chkdsk /R on this disk. An unspecified error occurred during System Restore. (0x80070013) You can try System Restore again and choose a different restore point. If you continue to see this error, you can try an advanced recovery method.”

Whereas in Windows Backup, it states:

“Check your backup, Windows Backup failed while trying to read from this shadow copy on one of the volumes being backed up. Please check in the event logs for any relevant errors. The backup failed, The media is write protected (0x80070013).”

On the other hand, you will see the following error message in Windows Update:

“There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact the support for information, this may help: (0x80070013).”

There are several suggestions you can check out to fix the error depending on where you encountered it. If you encountered it while running Windows Updates, then you can try to reset the Windows Update components or run the Windows Update Troubleshooter. And if you got the error when running System Restore, you can try to run a System File Checker scan or the DISM tool as well as the CHKDSK utility. Lastly, if you got this error when running the Windows Backup service, you can try to check its status in the Services Manager. Error 0x80070013 in Windows Updates:

Option 1 – Try to reset the Windows Update components

• Open Command Prompt with admin privileges.
• After that, type each one of the following commands and hit Enter after you key in one after the other.
  • net stop wuauserv
  • net stop cryptsvc
  • net stop bits
  • net stop msiserver

Note: The commands you entered will stop the Windows Update components such as Windows Update service, Cryptographic services, BITS, and MSI Installer.

• After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below, and don’t forget to hit Enter after you type one command after the other.
  • ren C:/Windows/SoftwareDistribution/SoftwareDistribution.old
  • ren C:/Windows/System32/catroot2/Catroot2.old
• Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
  • net start wuauserv
  • net start cryptsvc
  • net start bits
  • net start msiserver
• Close Command Prompt and reboot your PC.

Option 2 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing error 0x80070013. 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. Error 0x80070013 in System Restore:

Option 3 – Try to run both Systems File Checker scan and DISM tool

Running the System File Checker scan as well as the DISM tool can help you resolve error 0x80070013 while performing System Restore. Refer to these steps to do so.

• Open the Command Prompt with admin privileges.
• After opening Command Prompt, execute this command to run a System File Checker scan: sfc /scannow
• Once the scan is completed, restart your computer and then see if the error is now fixed. If not, you can run the DISM tool.
• Open Command Prompt with admin privileges again.
• Then type in the following commands and make sure to hit Enter right after you type each one of them in order to properly run the DISM tool:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • 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 4 – Run the CHKDSK utility

• In the Windows Search box, type “command prompt” and from the search results, right-click on Command Prompt and select “Run as administrator”.
• After opening Command Prompt, type this command and tap Enter: chkdsk <Partition Letter>: /f /r /x /b
• The command you entered will start to check for errors and fix them automatically. Else, it will throw an error message saying, “Chkdsk cannot run because the volume is in use by another process. Would you like the schedule this volume to be checked the next time the system restarts? (Y/N)”.
• Tap the Y key to schedule Disk Check the next time your computer restarts.

Error 0x80070013 in Windows Backup:

Option 5 – Try checking the status of the Windows Backup Service

• First, you need to tap the Win + R keys on your keyboard to open the Run dialog box.
• Next, type “services.msc” in the field and click OK or tap Enter to open the Windows Services Manager.
• After that, you will see a list of services and from there, look for the Windows Backup Service and double click on it to open its Properties.
• Then check if its Startup type is set to Disabled. If it is, then change it to “Manual”. Note that this service is essential as it provides backup and restores capabilities.
• Now click on the Apply and OK buttons to save the changes made and then restart your computer. Check if the error is now gone.

The previous Windows versions all came with Microsoft's browser Internet Explorer. A lot of users love it because not only that it is easy to use. It is also very fast. Users didn’t have to worry about compatibility because it is almost always compatible with its Windows Version. When they introduced Windows 10, they changed the name of the browser from Internet Explorer to Microsoft Edge. It is faster and more user-friendly compared to its predecessors. But after the Creator Update, some experienced receiving the inet_e_resource_not_found error code. In contrary to what everyone expects, you actually don’t have to uninstall and reinstall the Microsoft Edge App. What you can do is reset the browser in your Apps & Features Settings in your Microsoft Settings.

To reset the browser you can follow the steps below:

1. Click on the Windows icon and go to settings.
2. Click on Apps and this will bring you to the Apps & Features page. Look for Microsoft Edge from the list of Apps and click on it.
3. Choose Advance Option
4. Scroll down then Under Reset, click on repair or reset. When you repair it will fix the existing problem but the data that caused the problem may still be present and can still cause problems. If you click on reset, it will delete all the cache and cookies that are installed in your browser but it will save your Favorites as well as your bookmarks.

Another way to resolve this is by disabling the feature TCP Fast Open on Microsoft Edge. To disable this, go ahead and follow the steps below:

1. Open the Microsoft Edge browser.
2. Type in about: flags on the Address (URL) bar.
3. Under Networking, uncheck the Enable TCP Fast Open.
4. Close your Microsoft Edge browser and open a new one.

Flushing the DNS also worked for other Users. Sometimes, the error code the inet_e_resource_not_found is caused by a corrupted DNS cache. There are 2 ways to flush your DNS. The first option is to use the command prompt to run the command.

1. To access the Command prompt or CMD, you can search for it on Cortana or you can click on the Windows icon to access the Programs, scroll down to the Windows System folder and click on it.
2. A dropdown menu will show up, click on Command Prompt which is the first on the list.
3. Type in the code ipconfig /flushdns and press enter.
4. There will be a message that will show that says Windows IP configuration successfully flushed the DNS Resolver Cache
5. Exit the CMD by typing exit and press enter.

The easiest way to do this is to Press the keys Window + R on your keyboard. Type in ipconfig /flushdns in the search box and hit enter or click on OK. These are only some of the ways to resolve the inet_e_resource_not_found. There are other ways to further troubleshoot this issue such as reinstalling your Wifi Adapter Driver or adjusting the DNS Server Address. But most of the time, users are able to resolve the issue with the steps provided above.

Security on your PC and on your accounts is the important thing. Security on your phone device is also very very important. That is why we are bringing you a list of 8 applications that are marked by the cybersecurity team as ones that could be used to steal data from you. If you have by any chance any of these applications installed, uninstall them immediately.

List is as follows:

• Cake VPN (com.lazycoder.cakevpns)
• Pacific VPN (com.protectvpn.freeapp)
• eVPN (com.abcd.evpnfree)
• BeatPlayer (com.crrl.beatplayers)
• QR/Barcode Scanner MAX (com.bezrukd.qrcodebarcode)
• Music Player (com.revosleap.samplemusicplayers)
• tooltipnatorlibrary (com.mistergrizzlys.docscanpro)
• QRecorder (com.record.callvoicerecorder)

If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

0x80042109 - What is it?

0x80042109 is a Microsoft Outlook error. The 0x80042109 error code occurs mostly while sending emails. The error message is often displayed in the following format:

“Sending reported error (0×80042109): Outlook cannot connect to your outgoing (SMTP) e-mail server.”

Solution

Error Causes

It is not easy to narrow down the cause for the error code 0x80042109. This error can occur due to many reasons. This includes:

• Corrupt emails and PST files
• Incorrect Outlook account settings
• Unavailability of the mail server
• Incomplete Outlook installation
• Spyware or viral infection

Further Information and Manual Repair

To resolve the 0x80042109 error code on your PC, here are some easy and effective DIY solutions you can try:

Method 1 - Check Mail Settings

Check your mail settings to see if your outgoing server SMTP is selected or not. If it is not, then it could be the reason for the issue. To check mail settings and select the option, here’s what you need to do:

1. Click Tools, select Account Settings, and then POP 3 account and click change.
2. Now check your name field and email address.
3. Check the incoming and outgoing mail server fields and make sure that it is correct.
4. Now click on the outgoing server and make sure that the option ‘My Outgoing Server (SMTP) requires Authentication is selected.
5. After that, click Advanced and tick the option that says ‘This server requires an encrypted connection (SSL).
6. Now click OK to confirm settings.

Method 2 - Reinstall Outlook on your PC

The error may also occur due to incorrect Outlook installation. Therefore reinstall it on your PC. To do this first you will have to uninstall the software and then re-install it. Once the software is reinstalled try sending the email again. If it is sent successfully, then this means the error is related to incomplete installation. However, if the error still persists then it is advisable to restore the points by going to the System Restore option and choosing the option ‘Restore My Computer to an Earlier Time’ point. This will revert the changes.

Method 3 - Try Disabling Firewall

If you have firewall program installed on your PC, then try disabling it and then send an email through your Outlook account.

Method 4 - Scan for Viruses

Another way to resolve the error code is to scan for viruses. Viral infection and spyware and also affect your Outlook account and activities. However, installing an antivirus on your PC may slow down its performance as such programs are notorious for doing that. Therefore, it is advisable to download Restoro. Restoro is a next generation and a highly advanced PC Fixer embedded with powerful and multiple utilities including an antivirus and a system optimizer. Its intuitive algorithm enables it to scan your entire PC and remove all kinds of malicious software affecting your system including malware, adware, spyware, viruses and Trojans. The system optimizer utility works simultaneously and ensures your PC performs at its optimum speed. It is safe, bug-free, and efficient. It has a user-friendly interface which makes it simple and very easy to operate. You can download it on all Windows versions. Click here to download Restoro to resolve error 0x80042109 today!

If you are dissatisfied with your internet speed on your computer but do not want to shell out more money for a faster package or simply there is not a faster package, lay down and enjoy this article where we will go through some common practices and tweaks which will result in increasing your internet speed. Please note that this guide will not be able to go beyond the limits of your internet provider's physical speed, this guide is made you can squeeze the maximum from your existing plan and eliminate speed drops.

1. 1. 1. Modify IRPStackSize

         Press ⊞ WINDOWS + R to open the run dialog In run dialog type RegEdit and press ENTER In registry editor find HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters Right-click on Parameters> New> DWORD 32 Name it IRPStackSize and change the value to 32 Save and reboot your computer.

      2. Add a Default TTL

         Press ⊞ WINDOWS + R to open the run dialog In run dialog type RegEdit and press ENTER In registry editor find a key Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters Right-click on Parameters> New> DWORD 32 Name it DefaultTTL and change the value to 64 Save and Reboot

      3. Close Background Applications which are using the internet

         If some applications are running in the background that are using the internet, your speed will be much lower. CLose them to gain speed.

      4. Modify the TCP1323Opts value

         Press ⊞ WINDOWS + R to open the run dialog In run dialog type RegEdit and press ENTER In registry editor find a key Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters There should be a DWORD Value, TCP1323Opts, if not, then create it. Right-click on Parameters> New> DWORD (32-bit) Value. Double-click on it and change its value to 1 Save and reboot

      5. Scan system for Viruses and other malware

         Viruses and malware applications can not only slow your entire system, but they can also reduce your internet speed as well. Do a complete scan of your system to be sure you do not have any malicious software on it.

Error Code 47 – What is it?

It is a device driver error that users encounter when they use Windows 2000 operating system and its later versions.

The error occurs when the connected peripheral device, upon removal using the ‘Safe Removal Hardware’ program, hangs up a problem within the process. The error prompt you then see is referred to within the operating system as error code 47.

It usually pops up on your computer screen with the following message:

Windows cannot use this hardware device because it has been prepared for "safe removal", but it has not been removed from the computer. (Code 47)

Solution

Error Causes

There are many factors responsible for the Error Code, the primary ones are listed below:

• An incomplete program installation
• An incomplete program uninstallation
• System recovery from viruses
• Corrupted Windows system registry entries

Further Information and Manual Repair

Error Code 47, like other device driver error codes, is relatively easy to solve. You can fix the error code in the following ways:

Method 1 – Reconnect the device to your computer

Unplugging and plugging the USB cable of the device into the computer is the easiest way to resolve the error.

Doing this will help refresh the system and increase the likelihood of the device driver files loading and function properly.

Method 2 – Restart your PC

Another simple method you can use to solve your PC error code is to simply restart your Windows system.

It may be that the error prompted upon connecting the device you have connected is merely a temporary problem, and upon restart, will resume functioning smoothly.

Method 3 – Manually uninstall then reinstall the device driver

If both of the above-listed methods fail to resolve the problem, you may have to resort to manually uninstalling and then reinstalling the device driver causing the problem.

This would be necessary since the remaining incomplete files due to a partial removal or installation of programs is what contributes to the error code. By uninstall and reinstalling the device driver program, it would lead to the completion of the files.

You can do this by firstly logging in as Administrator and open Device Manager. Select the device that is causing the problem and double click it and make sure that the peripheral is connected properly to the PC.

Upon opening, click on the ‘Driver’ tab and then select ‘Update Driver’. Make sure to refer to the system documentation that you received with your PC or computer to check for the motherboard details and driver specifics.

Method 4 – Use software to automatically download the driver

Manually uninstalling and reinstalling the driver will usually do the trick; however, it may be time-consuming especially when you would have to resort to your hardware user manual.

Therefore, using a program such as DriverFIX can save you a lot of time and frustration in having your device work properly on your computer.

DriverFIX, with its user-friendly approach to help you fix your PC issues, comes with an integrated database that detects which drivers you need to reconfigure within just a few seconds and downloads it automatically. It further ensures that your drivers are installed in their entirety leaving no room for any incomplete files to remain that create Error Code 47. It also has the added advantage of being able to backup and restores your files should there be the slightest possibility of system file damage. Thus, registry damage can be averted by letting the software roll back the system files to an earlier healthy checkpoint. DriverFIX is the answer to fixing your PC error codes accurately and quickly. Click here to download DriverFIX to fix Error Code 47 quickly and effectively!

As you know, Windows Update is the source for everything latest for Windows from Microsoft. Your computer receives essential updates frequently because of the Windows Update service and this Windows Update mechanism depends on various services such as Background Intelligent Transfer Service or BITS, Windows Server Update Service, Windows Update service, and many more. Although it may seem like a complex delivery system, it is a very efficient one. However, it is not without its issues as it still encounters errors every now and then. One of these errors is 80244019 which applies only to the Windows Server operating systems and to resolve it, you need to determine its cause. The Windows Update Error 80244019 is most likely caused by faulty and corrupted DLL files or Registry Entries, connectivity issues, and outdated configuration of Windows Update service on the client end. Moreover, the error can also be caused by malware or if a file is not found on the server. This error can lead to a number of system issues like Startup and shutdown issues, software installation errors, external devices connection, system lags, unexpected application, and program issues, and many more. To resolve the problem, refer to the options given below.

Option 1 – Restart some Windows Update services

The first thing you have to do is to restart Windows Update-related services. Refer to the steps below to do so.

• 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 stop bits

• After entering these commands, it will stop the Windows Update Service and the Background Intelligent Transfer Service.
• Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files there by 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.
• Once all the contents in the Software Distribution folder are deleted, restart your PC and then go back to Command Prompt and input the following commands again.

net start wuauserv net start bits

 Since the folder has already been flushed, it will be populated afresh the instant your restart your computer and open Windows Update.

Option 2 – Try turning on the Data Execution Prevention or DEP

The problem might be caused by disabled Data Execution Prevention which is why you have to make sure that it’s turned on.

Option 3 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update Error 80244019. 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 4 – Try reconfiguring the Windows Update Settings

You can also try to reconfigure the settings in the Windows Update section to resolve the error.

• Tap the Win + I keys to open the Windows Settings.
• Next, click on Update & Security > Windows Updates > Update Settings and from there, click on the Advanced Options.
• After that, uncheck the “Give me updates for other Microsoft Products when I update Windows” option.
• Now restart your computer to successfully apply the changes made and then check if the Windows Update error is now fixed.

Option 5 – Try to manually install the Windows Updates

Windows Update Error 80244019 might be due to a Windows Update that has failed. So if it is not a feature update and only a cumulative update, you can download the Windows Update and install it manually. But first, you need to find out which update has failed, and to do so, refer to the following steps:

• Go to Settings and from there go to Update and Security > View Update History.
• Next, check which particular update has failed. Note that Updates that have failed to install will be displayed under the Status column which has a label of “Failed”.
• After that, go to the Microsoft Download Center and look for that update using its KB number and once you find it, download and then install it manually.

Note: You can also use the Microsoft Update Catalog, a service from Microsoft that provides a list of software updates that can be distributed over a corporate network. With the help of this service, it can be easier for you to find Microsoft software updates, drivers as well as fixes.

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.

10 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.