How to always run the app in admin mode in W11

Error Code 14 - What is it?

Generated due to temporary device and Window system conflicts, Error code 14 is a typical Device Manager error.  This error code can pop up anytime and usually displayed in the following format:

“This device cannot work properly until you restart your computer. (Code 14)”

Though it is not a fatal error code like the infamous Blue Screen of Death and runtime error codes, nonetheless it is still advisable to repair it immediately before any delay to avoid inconvenience.

It can lower your PC’s performance and hamper you from using certain hardware devices as a result of driver problems.

Solution

Error Causes

Error 14 is triggered when your system is unable to correctly read the files and settings which is important for running a certain piece of your PC hardware. Now this conflict may occur due to reasons like outdated, corrupted, or poorly installed drivers. Other causes may include corrupted registry entries.

Simply put, Error code 14 is a good reminder that PC users should pay attention to updating device drivers to ensure healthy systems and optimum PC performance.

Further Information and Manual Repair

The good news is that error code 14 is quite easy to resolve. You don’t have to spend hundreds of dollars to hire a professional programmer to get it fixed. To repair, simply follow the DIY methods listed below.

We have compiled some of the best, proven, and easy to perform solutions for PC users to resolve Device Manager error codes like error code 14. Follow the instructions here to resume the functionality of your PC.

Let’s get started:

Method 1 - Reboot Your System

Sometimes, an action as simple as rebooting your PC can also resolve technical problems like error code 14. So, before you try any other method, try giving this a shot.

The moment the error code pops on your screen, simply close all the programs running on your system and restart your PC. This refreshes your system settings, processes and services allowing it to run smoothly.

However, if the error still persists, then try other methods given below.

Method 2 - Delete the Corrupted Registry Entries

Corrupted registry entry can also trigger error code 14. To resolve delete the corrupted registry entries. For this, go to the start menu and type Regedit. A dialog box will open. Now navigate through the HKEY_LOCAL_MACHINE key. Expand further to locate HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass. Once located, now in the right pane click upper filters and then click delete on the edit menu. Click yes when prompted to confirm the deletion.

Now in the right pane, click lower filters. Repeat the same steps as performed to delete upper filters. Confirm deletion and then exit the registry editor. To activate changes, restart your PC. This will hopefully resolve the issue. If the error code pops up on your computer screen, then try method 3.

Method 3 - Update Corrupted/Outdated Drivers

Drivers are basically software applications that communicate and provide instructions to your system to operate hardware devices.

When these become corrupt or outdated, you start experiencing problems like error code 14. To resolve, locate corrupted drivers and update them. You can do it both manually and automatically. We’ll discuss both ways.

For a manual driver update, go to the start menu, control panel, and then Device Manager. Now go through all devices listed to locate problematic drivers. To identify problematic drivers, look for yellow exclamation marks next to each device. Devices with yellow exclamation marks indicate that driver issues. To repair, right-click on each hardware device and select update driver.

Method 4 - Install DriverFIX - Alternative to Manual Driver Update

Updating each driver separately and manually is a stressful and frustrating task. This can take a lot of your time. Sometimes, you may also have to download new driver versions from the internet to install perform updates. To avoid the hassle and save time, it is advisable to install a program like DriverFIX.

This user-friendly and intuitive software is based on sophisticated technology featuring an intelligent programming system that automatically detects all your PC drivers in seconds.

Once you install this software on your system, it instantly identifies problematic drivers and matches them to the latest versions. It updates PC drivers immediately thereby resolving the error code 14 problem in a few seconds. It enables accurate installations and ensures that your PC runs at its optimum level.

More importantly, with this software installed on your PC, you don’t have to worry about keeping track of your driver updates anymore. The software updates drivers on a regular basis with new and compatible versions ensuring that your PC functions properly and you don’t experience any type of Device Manager error code. It is easy to use and install. It is compatible with all Windows versions.

Click here to download DriverFIX to resolve error code 14 on your system right away.

Hal.dll Error - What is it?

Hal.dll error is a type of dynamic link library error that is common in Windows. Hal.dll is the critical file in all Windows installations and the error occurs when this file cannot be correctly loaded. Hal is the abbreviation for ‘Hardware Abstraction Layer’. Communication between Windows and different PC hardware is facilitated with this file. The error causes inconvenience and hampers your ability to use the hardware. The error message is displayed in either one of the following formats:

• "Windows could not start because the following file is missing or corrupt: C:Windowssystem32hal.dll. Please re-install a copy of the above file."
• "Cannot find WindowsSystem32hal.dll"
• "C:WindowsSystem32Hal.dll missing or corrupt: Please re-install a copy of the above file."

Solution

Error Causes

Hal.dll error occurs due to multiple reasons. These include:

• BIOS are not configured properly
• Damaged hard drive
• Hal.dll file is missing, damaged, or corrupt
• Viral Infection

Further Information and Manual Repair

To fix and resolve the Hal.dll error code on your system, you don’t always have to hire a professional technician for the job. Though Hal.dll error is critical but easy to resolve, here are some solutions that you can try to fix it right away even if you don’t have any technical expertise.

1) Restart Your PC

Sometimes this can be a temporary error, so try restarting your PC. If the error is resolved then that’s great. However, if it still persists, then try other solutions.

2) Change the Boot Order

The underlying cause for the Hal.dll error is often not properly configured BIOS; if this is the cause, simply change the boot order of the bootable devices like your hard drive. The BIOS setup utility is used to change boot order settings. This can be done by restarting your PC. Once you restart, press F2 to enter the setup. Now go to SATA operation and change RAID AHCI to RAID ATA. Save changes and then exit. By doing so, you will be able to re-configure the BIOS and resolve the error.

3) Use BOOTMGR

Another way to resolve is to update the volume boot code to use BOOTMGR. To do this, access advanced startup options, open the command prompt and type bootsect command and then press Enter. Run the command and then you’ll get the following message: C: (\?Volume{37a450c8-2331-11e0-9019-806e6f6e6963}) Successfully updated NTFS filesystem bootcode. Bootcode was successfully updated on all targeted volumes. After that close the command prompt. This is most likely to resolve the error.

4) Repair Registry With Restoro.

In case the error is still not fixed, then this means that the problem is bigger than you thought. It may be due to hard drive failure, viral infection, or sometimes because of hal.dll file corruption. In the event of these error causes, it is recommended to download Restoro. Restoro is an advanced, next-generation, and multi-functional PC repair tool embedded with numerous utilities like a registry cleaner, an antivirus, and a system optimizer. The registry cleaner utility:

• Scans for all registry issues
• Wipes out the unnecessary files saved in the hard drive like the junk files, cookies, internet history, and temporary files
• Cleans the disk
• Repairs damaged and corrupt files
• Restores the registry

The antivirus utility scans and removes all malicious software from your PC including viruses, Trojans, malware, adware, and spyware. Simultaneously, it also boosts the speed of your system. It is safe and efficient PC repair software. It has simple navigation and a user-friendly interface. Whether you are using Windows 7, 8 or Vista, it is compatible with all. It can also be used on Windows XP. Click here to download Restoro and resolve the Hal.dll error today!

A lot of things can go wrong even when you’re only doing some simple operations or tasks on your computer and this is due to the fact that there are various small operations make up in order to perform the larger operations on your computer. So if any of these smaller operations are not properly working, it crashes the operation as a whole and it throws an error code instead. And one of these error codes is Error 0x800701e3. This particular error pops up when an error has occurred in the File Explorer when a transfer is initiated from one disk to another in your Windows 10 computer. When you encounter this error, you will get the following error message:

“Error 0x800701e3: The request failed due to a fatal hardware error.”

There are several methods you can check out to fix this error – you can try to run System Restore or Check Disk or format the destination drive or check the SMART attribute of the drive. For more details, refer to each one of the following options.

Option 1 – Try to run System Restore

Error 0x800701e3 might be due to some adjustments you’ve made in your computer’s settings. Thus, to fix this error, you can try undoing those changes using System Restore. How? Refer to these steps:

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and then check if your mouse is now back to its normal state.

Option 2 – Try running the Check Disk utility

You can also run the Check Disk utility in fixing Error 0x800701e3.

• 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.

Option 3 – Try to format the destination drive

Formatting the destination drive could also help you resolve error 0x800701e3. To format your drive, follow these steps:

• First, open File Explorer and then right-click on the drive where you encountered the error.
• Next, select Format from the context menu. This will open a new mini window.
• Then select the NTFS option from the drop-down menu for the File System menu.
• After that, check the box labeled as Quick Format.
• Now click on Start. Keep in mind that doing so will remove all the contents of your storage device.

Option 4 – Verify the hard drive using SMART attributes

In case you don’t know, Windows has a built-in feature of SMART analysis which analyzes the hard drive/SSD and checks all the parameters by performing some minor operations. To use it, follow these steps:

• Tap the Win + S keys and type “command prompt” in the field then right-click on the related search result and select the “Run as administrator” option.
• After opening Command Prompt as admin, type the “wmic diskdrive get status” command and hit Enter.
• You should get a result after that, and if you see that it’s “normal”, proceed to the next option below

What Is Error 2032?

Error 2032 is essentially the hexadecimal format of the error caused. This error code is actually a code format used by the Windows operating system. Manufacturers use this code to determine the cause behind the problem. This error is usually the result of the issues that arise with different applications. When this error occurs, individuals are not able to view multimedia content on their PC. They may also experience system crashes and this makes it crucial to resolve it.

Solution

Error Causes

Error 2032 is caused by problems in Windows system files. Improper registry entries may also cause this problem. Some of the common causes that trigger Error 2032 are improper deletion of hardware or applications. Similarly, incomplete hardware or application installations or uninstallations may also cause issues. These file errors are actually caused when a computer has recently been attacked by a virus, spyware, or malware or if the system is trying to recover from an unanticipated shutdown. Such activities often result in the corruption or deletion of registry entries in Windows system files. The corrupt files will obviously cause problems and the application will fail to perform correctly.

Further Information and Manual Repair

While there are several ways to solve this problem, some of the most useful and practical solutions are listed below as follows.

• If you are an advanced user, this workaround is for you. First and foremost, restart your computer and log on to it as the administrator. Now click on the ‘Start’ button.  Now follow this path: All programs ->Accessories-> System Tools->System Restore. Once you choose to perform System Restore, you will come across options where you can select to ‘Restore your computer to an earlier time’. This option will appear in a new window. Click on it and then click Next. Click on the Next button again that appears in the confirmation window. Restart your computer after the restoration is finished. You have just resolved the error.
• Another easier alternative to fix Error 2032 is for novice users. Download an Error 2032 repair utility. Install this program as you are most likely to come across a Scan button. If there is an option to fix and repair an error, select it after the scan is complete. You can then restart your computer again. Look for the error and you will realize that it has disappeared and that your system is now ready to use.

There are several kinds of errors you could encounter when you are running Windows 10 on a virtual machine. The Windows OS knows the difference between booting up in a standalone computer or in a virtual machine. This is why some specific drivers and system capabilities are used while emulating the Windows OS on software and during this phase, there are times when the System Preparation may throw up an error that says, “A fatal error occurred while trying to sysprep the machine”. This kind of error arises due to a race condition wherein the Sysprep command tries to stop the Microsoft Distributed Transaction Coordinator or MSDTC service and the VMware tool tries to start the MSDTC service. You may also see the following messages logged in the Setuperr.log file:

• [0x0f0082] SYSPRP LaunchDll:Failure occurred while executing ‘C:Windowssystem32msdtcprx.dll,SysPrepDtcCleanup’, returned error code -2146434815[gle=0x000000b7]
• [0x0f0070] SYSPRP RunExternalDlls:An error occurred while running registry sysprep DLLs, halting sysprep execution. dwRet = -2146434815[gle=0x000000b7]
• [0x0f00a8] SYSPRP WinMain:Hit failure while processing sysprep cleanup providers; hr = 0x80100101[gle=0x000000b7]

To fix the 0x0f0082, 0x0f0070, 0x0f00a8 Sysprep errors, you can check out two potential fixes. First, you have to check the status of the MSDTC service and the second one is to check the settings in the Windows Registry. Note that these fixes are proven to be effective on many users and apply to several versions of Windows, including Windows 10.

Option 1 – Check the status of the MSDTC service via Command Prompt

As mentioned, the error could be caused by the malfunctioning of the MSDTC service or it. Thus, you have to uninstall and reinstall the MSDTC service to resolve the problem and you can do that using Command Prompt. Follow the steps below.

• In the Start Search, type “command prompt” and from the results, right-click on Command Prompt and then select the “Run as administrator” option to open it with admin privileges.
• If a User Account Control or UAC prompt appears, just click on Yes to proceed.
• Once you’ve opened Command Prompt, execute this command: msdtc –uninstall
• The command you just entered will uninstall the MSDTC service. After that, you need to execute this second command to reinstall the service: msdtc –install
• Now exit Command Prompt and check if the error is now fixed.

Option 2 – Check the Registry settings

• Tap the Win + R keys to open the Run dialog box and type “Regedit” in the field and click OK or hit Enter to open the Registry Editor.
• After opening the Registry Editor, navigate to this registry path: HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSoftwareProtectionPlatform
• From there, look for a DWORD value that’s named “SkipRearm” and double click on it.
• Then change its value data to “1”.
• Restart your computer to apply successfully apply the changes made and check if it was able to fix the error.

Many Linux users if not all of them can run their distros from a USB drive but did you know you can run Windows 10 from a USB drive as well? Microsoft has introduced all the way back to Windows 8 one feature called Windows To Go and it kept it in Windows 8.1 and in Windows 10 as well. This feature is intended as a convenient way for workers to carry their corporate environments with them, but having your own copy of Windows on a thumb drive could be handy for backup purposes, too, or if you frequently use public machines that lack your preferences/applications or that have a restricted OS.

What you will need?

In order to actually make Windows 10 run from a USB drive you will need the following things:

1. USB drive with a minimum size of 20GB
2. Working computer with Windows 10 running on it
3. Rufus or another ISO to UBS tool, get Rufus here: https://rufus.ie/en_US/
4. Windows 10 ISO file

Making Windows 10 UBS drive

Install Rufus on your Windows 10 and run it. Stick USB in PC and open Rufus. On the screen that follows choose your Windows 10 ISO image and under Image options choose Windows To Go. Click on ready and you are finished, that’s it. After Rufus finishes you have now fully working Windows 10 bootable drive which you can use on another PC for whatever reason.

Lately on EA forums question has appeared on what to do when Origin client does not load library. It seems that the latest update for the Origin client has brought some issues as not properly showing one library which appears empty. Do not worry, we have a solution for you, several to be precise and it will fix the issue guaranteed. It is advisable to try solutions in order how they are presented since they go from the most simple and fastest and most common ones.

1. Delete the cache

   Close origin client completely Press ⊞ WINDOWS + R to bring the run dialog In the run dialog type in %ProgramData%/Origin and press ENTER Go into the Origin folder Delete all files and folders except the LocalContent folder Press ⊞ WINDOWS + R to bring the run dialog In the run dialog type in %AppData% and press ENTER Delete the Origin folder In the address bar click on AppData Go into the local folder Delete Origin folder Reboot your PC

2. Clear the temporary files

   Press ⊞ WINDOWS + R to bring the run dialog In the run dialog type in %AppData% and press ENTER Go into the roaming folder Delete Origin folder Go to the AppData folder and delete the Origin folder from there also Reboot system

3. Try Windows built-in tools to check compatibility

   Locate where Origin is installed and right-click on the executable file Click on properties Go to the compatibility tab Click on Run the compatibility troubleshooter and follow on-screen instructions

4. Update Origin

   Rarely this is the case but check manually to see if you can update your Origin client. Sometimes due to network issues client does not update automatically and can cause this strange behavior.

5. Add origin as an exception to antivirus and firewall

   Not rarely game clients can be detected as some form of malicious software and antivirus along with firewall can automatically block it. Go to your security software settings and add it as the exception.

6. Reinstall Origin

   If everything else fails, reinstall the Origin client

Encountering errors is never a pleasant experience and fixing errors can sometimes take a large amount of time. Also depending on your expertise and knowledge about computers and the operating systems themselves could be determining factor would you try to wrestle with error.

We will explore and analyze the advantages of both methods so you can choose and know when to apply one and when to reach for the other.

Advantages of manual method

Full control is the main advantage of manually solving errors, when you go deep dive into manually fixing problematic issues you are one that has control. Complete freedom is also another, sometimes fixing things can be done in several different ways and when you are the man behind the wheel, you are the one that can choose how to approach and what solution to apply in order to solve the issue.

Disadvantages of using manual method

The main disadvantage that some users might encounter is that they will need to know ins and outs of computer and operating systems' workings. Of course, the more complicated errors, the more knowledge it will require in order to apply the proper fix. There is also a risk to break something else if the person that is doing the fixing is not fully competent so this is also something to think about.

Another thing that goes against manual fixing is the time it will require in order to actually fix it, some more complex stuff will probably depend on searching for some external resources like searching for compatible drivers for example, or navigating complex registry keys inside Windows.

Advantages of automatic solutions

If you are a user that has no knowledge about how the operating system works, if you do not know what is a registry or how to properly navigate through the Windows folder then the automated solution is for you. The main advantage of automated systems is that you can easily fix errors without any kind of technical knowledge and usually with just one click of a button.

Saving time is also one of the advantages of fully automated solutions because they will work much faster than manually locating the problem and then fixing it. Also, most of these systems will have in place active monitoring that will check always if your system is in top form and alert you when something is not right.

Disadvantages of one-click solutions

Automated solutions are great, they can solve various issues and errors without any knowledge from the user, but they are not perfect. Like security suites sometimes an automated system can misinterpret something as an error when in fact it is not and fixing it could mean some apps not working anymore, luckily you can choose would you like to apply the suggested solution. So if you are using one do not just click fix without looking at what it is trying to fix and maintain.

Another problem with this is the price it is carrying, manually solving your computer error will cost you your time and knowledge but good automated software will come with a price tag. Some people might not be too happy to pay for this kind of application but at the end of the day, it will still be cheaper than a professional technician. The last thing that you should be aware of is that in order for the app to do its work properly it will need to be active all the time, now for modern computers, this is not the issue but for some older ones with a small amount of memory might lead to some slowing them down. This is a price to be paid in order to have your system always errors free.

Should you use an automated solution at all?

This depends on your knowledge and time available, professional IT technicians will not need this type of solution nor will power users but for most common people this will offer computers free of errors for an affordable price.

What is Dnssd.dll Error Code?

Dnssd.dll is a type of dynamic link library. It is developed for Windows Operating System by Apple Computer Inc. The latest version of fnssd.dll is 3.0.0.10 used in Windows Vista.  This file also functions like a typical dynamic link library.  DDL files are small programs similar to executable files which are used by multiple programs to load and run properly. Dnssd.dll error occurs when the dnssd.dll file fails to function properly and load to run the desired application/program.  The error may occur most often during computer startup and program startup. The dnssd.dll error message may be displayed on your PC on either one of the following formats:

• "Dnssd.dll not found."
• "Dnssd.dll Access Violation."
• "Cannot register dnssd.dll."
• "The file dnssd.dll is missing."
• "Cannot find C:WindowsSystem32\dnssd.dll."
• "This application failed to start because dnssd.dll was not found. Re-installing the application may fix this problem."
• "Cannot start Bonjour. A required component is missing: dnssd.dll. Please install Bonjour again."

Solution

Error Causes

To narrow down the cause of the dnssd.dll error is difficult virtually because there are multiple reasons why this error occurs on your system. However, here are the most common causes for this error:

• Missing  Dnssd.dll file
• Corrupt and damaged Dnssd.dll file
• Invalid  dnssd.dll registry entry
• Viral Infection
• Improperly shutting down your PC
• Poor PC maintenance
• Broken registry keys
• Hardware failure
• Dnssd.dll file deleted when uninstalling another program

It is advisable to fix this error right away, as it can create many troublesome problems on your PC such as slow system performance, computer freeze up, blue screen of death errors, system failure, and crash.

Further Information and Manual Repair

Here are some of the best and easiest DIY solutions that you can try to resolve this issue on your PC without hiring a professional.

1. Use System Restore Function

Since this error largely indicates poor PC maintenance, it is advisable to use the System Restore function built-in Windows to resolve the Dnssd.dll file error. It will help you restore the system back to its previous healthy status. It can also help you get a fresh copy of damaged and corrupted files. Here’s what you need to do:

• Go to the start menu of Windows, type restore in the search box.
• Choose the option that says ‘choose a different restore point’ this presents customizable options for users.
• Here you will be presented with a list of restore points, choose the one that you believe has most likely caused the dnssd.dll error.
• Confirm your selection.

This will help resolve the error. Now restart to see changes made. If the error still persists then try other solutions given below.

2. Reinstall the Program Causing the Dnssd.dll Error to Pop Up

As dll files are shared files, there is a possibility that the file got deleted when you tried to uninstall a certain program. Therefore, if this is the reason, then try to reinstall the program that is causing the error message. By doing so, you can set up the dnssd.dll file again on your PC.

3. Scan for Viruses and Registry Issues

Other reasons for the error are associated with viral infection and registry issues. Therefore it is advisable to download software to scan for these issues and remove them from your PC. Viruses can also corrupt dll files. On the other hand, dll errors like Dnssd.dll can also occur if the registry is not cleaned frequently. The registry becomes corrupt due to the accumulation of invalid/wasted and irrelevant files. This also causes disk defragmentation and hard disk problems which can also lead to hardware failure and dll file damage and corruption. Now to repair it you can either download 2 different programs, an antivirus, and a registry cleaner, or you can install multi-functional and advanced software, Restoro. Downloading 2 separate programs can reduce your PC performance even furthermore. Therefore we recommend you opt for Restoro. This is a one-stop solution for all your PC problems. It includes multiple utilities like an antivirus that detects all malicious software including spyware, malware, adware, Trojans, and viruses. A powerful registry cleaner that resolves all registry issues, wipes out bad registry entries and repairs broken registry keys, damaged dll files like Dnssd.dll, and restores the registry back to its optimum health. This software also functions as a system optimizer that boosts the speed of your PC dramatically. It is safe, bug-free, and efficient. All PC issues are resolved in seconds in just a few clicks. It is user-friendly and compatible with all Windows versions. Click here to download Restoro and resolve the dnssd.dll file error right away!

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.