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Fix Boot Device Not Found Error in Windows

If you encounter an error saying, “Boot Device Not Found” when you turn on your Windows 10 computer, then you’ve come to the right place as this post will guide you on how you can fix this problem. Apart from the error message, you will also see a message that states, “Please install an operating system on your hard disk, Hard Disk<xxx>”. You will then be asked to tap the F2 key to initiate the System Diagnostics.

If you install the Windows operating system, it becomes the boot device, and when your computer boots, the UEFI or the BIOS looks for the operating installed on your drive and continues the process. So when you encounter the “Boot Device Not Found” error, this means that the UEFI or the BIOS wasn’t able to locate the drive where it can boot.

There are several suggestions you can check out to resolve this error. You can try checking the connection with your boot drive or change the boot order. You can also fix the Boot Record from Recovery and see if the primary partition is active or not. But before you troubleshoot the problem, make sure that you have a bootable Windows USB drive ready since two of the options provided below will require you to boot into the Advanced Recovery mode. Once you have this covered, proceed to each one of the following options.

Option 1 – Try checking the connection with the boot drive

If you have a custom computer that comes with a cabinet, you might want to open it and remove any connected power supply, and then check the wires. As you know, drives are connected with the motherboard using a cable. So all you have to do is check if both ends are connected properly and make sure that the connection is not loose. You could also try to unplug the cable and plug it back in.

Option 2 – Try changing the boot order

You might also want to try changing the boot order of your computer. Each time a computer boots, the BIOS or the UEFI follows a boot order. It is the one that tells where to first look for the boot drive and if for some reason, a USB is connected to your computer and the first boot device found in the USB, then you have resolved the problem. All you have to do is to remove the USB device and boot or go into the BIOS and change the boot order yourself.

Option 3 – Try to rebuild the BCD files

The next thing you can do to resolve the issue is to Rebuild Boot Configuration Data or BCD files.

  • You can start by booting into the installation environment for Windows 10 from an installation media.
  • After that, click on Repair your computer and on the blue screen, select Troubleshoot and then select the Advanced options menu.
  • From there, select Command Prompt and once you open it, enter each one of the commands given below by sequence.
    • bootrec /FixMbr
    • bootrec /FixBoot
    • bootrec /ScanOS
    • bootrec /RebuildBcd
  • Once you’re done executing the commands given above, type “exit” to close the Command Prompt window and then restart your computer and see if it fixed the “Boot Device Not Found” error.

Option 4 – Try setting the System Partition to Active

Like the first given option, you also have to make sure that you have a bootable Windows 10 USB drive before you proceed to set the System Partition to Active. Once you have it covered, refer to these steps:

  • Boot your computer using the bootable Windows 10 USB drive.
  • Next, click Next when you get to the Welcome Screen.
  • Then click on Repair your computer located at the bottom left part of the window and select Troubleshoot > Advanced Options > Command Prompt.
  • After opening Command Prompt, type the following command and hit Enter to start the Diskpart utility. It is a command line-based utility just like Command Prompt but has a UAC prompt once you provoke it. So if you encounter a UAC prompt, just click on Yes to proceed.

diskpart

  • Now type the following command:

list disk

  • From there, select your primary disk by typing the following command:

select disk number

  • After that, list all the partitions on the selected disk by entering the following command:

list partition

  • The command you just entered will list all the partitions created on your PC including both types of partitions that are visible to a normal user in the File Explorer as well as the ones created by Windows 10 by default which helps it in storing the boot files and other important system files.
  • Now type the following command to select the partition that is usually around 100 MB in size:

select partition number

  • Finally, type the following command to mark the partition active:

active

  • Then type the “exit” command to exit the disk part utility.

Once it’s done, the primary drive should now be active and you should now be able to boot into your computer without the “Boot Device Not Found” error.

If you like to learn and find out more about various Windows errors, and how to repair them go to our vast archive or use search to find articles that will explain and help you in solving your issue.
However, if you prefer to do things fast and with automatization then we are proposing to use an automated solution for your issues. The applications that we are recommending are RESTORO & DRIVERFIX.
RESTORO is a one-click solution that will take care of your whole system.  This program is a useful tool that could repair corrupted registries and optimize your PC’s overall performance. Aside from that, it also cleans out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system.
DRIVERFIX is the ultimate solution for all of your driver's needs. It fully automates the process of keeping drivers up to date and keeping free from bad and corrupt drivers. With its lightning fast scans and hudge library it is only one click solution for all Windows PC driver needs.
Visit our RESTORO or DRIVERFIX Download pages to inform yourself about all the benefits of this software and get a free trial copy of it.
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An Easy Guide to Fixing Internal Error 2503

Internal Error 2503 - What is it?

Internal Error 2503 mostly pops up on Windows 8. It occurs when you try to uninstall or install software on Windows 8. The error code message may vary and displayed in different formats such as:
The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503. Called RunScript when not marked in progress The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503. Called Install Finalize when no installation is in progress

Solution

Restoro box imageError Causes

Some of the most common causes for internal error 2503 are:
  • Permission not granted to access the Windows Installer Folder
  • Viruses
  • Problems with Windows Installer

Further Information and Manual Repair

To repair this issue on your PC without any professional assistance, try the DIY methods given below:

Method 1

Internal error 2503 may occur when your account has limited privileges. You don’t have the privilege to use or access the Windows Installer folder. Your inability to access this folder hampers you from successfully install or uninstall the desired program on your PC. To gain access, you need to ensure you have permission.
  • For this navigate to the C:\windows folder. Here find the installer folder and then right-click and choose properties.
  • After that click on the security tab and check if the System and Administrator account has Full access permission.
  • For that make sure the system group option has ‘all’ selected to allow you full permission.

Method 2 - Re-register Windows Installer

Another alternative to resolve internal error 2503 is to re-register Windows Installer.
  • To do this, go to Start and click Run. Now type ‘msiexec /unreg’ in the Run box and then press enter.
  • Follow the same steps and now type ‘msiexec /regserver’ in the box and then press enter. This will resolve the issue.

Method 3 - Remove Viruses

If internal error 2503 is triggered by a viral infection on your PC, then it is advisable to download an antivirus and scan your entire system. Viruses are notorious for system failures and pose data security threats. If not removed timely, these malicious programs can damage your PC. To remove all viruses on your system, run an antivirus. An antivirus detects all malicious software programs including viruses, malware, adware, and spyware. Delete all the malicious files found right away. This will help resolve internal error 2503.
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How to Fix dxgmms2.sys BSOD in Windows
The dxgmms2.sys file is a system driver file in Windows that is associated with the Graphics Rendering capabilities of a computer. However, this file is known to cause various Blue Screen of Death errors. Some of the culprits for these errors include issues with RAM, hard disk issues, corrupted drivers, and incompatible firmware. Despite its many causes, fixing this issue is quite straightforward so it should be easier for you to fix it. Here are some of the Blue Screen errors related to the dxgmms2.sys file:
  • SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
  • SYSTEM_SERVICE_EXCEPTION
  • KMODE EXCEPTION NOT HANDLED
  • PAGE FAULT IN A NONPAGED AREA
  • IRQL NOT LESS OR EQUAL
If you have recently created a System Restore point prior to getting the dxgmms2.sys Blue Screen error, then you need to perform System Restore first before you further troubleshoot the problem as it might help in resolving the Blue Screen error. Refer to the steps below to perform System Restore.
  • First, press the Win + R keys to open the Run dialog box.
  • After that, type in “sysdm.cpl” in the field and tap Enter.
  • Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
  • After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.
If System Restore didn’t help in fixing the Blue Screen error, now’s the time for you to resort to the troubleshooting tips provided below but before you get started, make sure that you create a System Restore point first.

Option 1 – Reinstall the Graphics Card drivers

  • Tap the Win + R keys to launch Run.
  • Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
  • After that, a list of device drivers will be displayed. From there, look for the Graphics Card drivers listed under Display Adapters.
  • Right-click on each one of the Graphics Card drivers and select Uninstall device and then follow the next on-screen instructions given to uninstall the driver.
  • Now reboot your computer. During this time, your system will automatically reinstall the Graphics card drivers.
Note: You also have the option to go directly to the website of your graphics card manufacturer and check if there’s a new update – if there is, download it. After that, you could also check if there’s a new update of the game you’re getting the issue of the black bar.

Option 2 – Try running the DirectX Diagnostic Tool

Since the dxgmms2.sys Stop error has something to do with the DirectX Graphics APIs, you can run the DirectX Diagnostic tool to resolve the problem.

Option 3 – Try updating or re-installing DirectX

If the DirectX Diagnostic tool didn’t work, you can try to update or reinstall DirectX instead. This can help in fixing the problem because when you reinstall or update DirectX, it will replace the incompatible or corrupted components of DirectX from your computer.

Option 4 – Try to update the BIOS

Updating the BIOS can help you fix the Blue Screen error related to the dxgmms2.sys file but as you know, BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.
  • Tap the Win + R keys to open the Run dialog box.
  • Next, type “msinfo32” in the field and press Enter to open System Information.
  • From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
  • After that, you should see the developer and version of the BIOS installed on your PC.
  • Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
  • If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
  • Now double click on the downloaded file and install the new BIOS version on your computer.
  • Now restart your computer to apply the changes made.

Option 5 – Use some registry tweaks

  • Tap the Win + R keys to launch the Run utility.
  • Then type “Regedit” in the field and hit Enter to open the Registry Editor.
  • Next, navigate to this registry key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlGraphicsDrivers
  • From there, right-click on the right-side panel and click on New > DWORD (32-bit) Value.
  • Then set the name of the new DWORD to “TdrDelay”.
  • After that, use the next set of instructions and select the one for the Windows version you are using.

32-bit Windows:

  • Choose the DWORD (32-bit) value.
  • Then type in “TdrDelay” as the name and hit Enter.
  • After that, double click on TdrDelay and add “10” as its value and click OK. This will set the response time for your GPU to be 10 seconds.

64-bit Windows:

  • Select the QWORD (64-bit) value.
  • Next, type in “TdrDelay” as the name and hit Enter.
  • Double click on TdrDelay and type in “10” as its value data and click OK.
  • Restart your computer to apply the changes made.

Option 6 – Disable the Sleep Functionality

You might also want to disable the Sleep Functionality as it could be the reason why you’re getting the Blue Screen error. There are times when the graphics card’s drivers are being used in the background and if the display goes to sleep and is awakened, it may cause a Blue Screen error. To fix it, you can prevent your computer from going into Sleep mode.

Option 7 – Try to run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that might help you fix any Blue Screen errors related to the dxgmms2.sys file. It can be found on 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.
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IW Unicorn and Scorpion PC Chair cockpits
Recently on errortools.com, we were talking about Cooler Master’s Orb X gaming chair that is an absolute beast and an amazing product. One downside of Orb X is its price. IW product line is somewhat competing with Orb X with a much more affordable price aiming to probably take customer base with lower income but offering them a great experience as well. The first thing you will notice is a different design and somewhat feeling of cheaper quality if you compare it to Orb X but that is quite reasonable considering the chair itself is around 3.5 times cheaper than Orb X which really puts it in range of everyone can get it. But does a much cheaper price means low quality? Let’s explore.

IW Unicorn

IW unicornThe 2021 CLUVENS BRAND newly issued model UNICORN has fully electrical tilting capabilities to 160 degrees, Reading light-two LED & RGB illumination lighting, manual open/close keyboard tray, and armrests. This model is suitable for home and office, and also gaming computer work environments. It offers functions that enable the user to experience unprecedented comfort and quasi total immersion through strategically positioned 1-3 monitors, audio systems, and accessories. The result is a complete computer office, ergonomically optimized, with a minimal footprint that improves overall performance and productivity and health and comfort. Sitting on a chair can help a lot for relieving health problems like lower back pain, herniated discs, sciatica, and neck pain and also enhance performance and viewing effects.

More Luxury and More comfortable:

Equipped with Luxury feeling reclining Gaming chair made with high-density Mold Shaping Foam and superior quality PU leather with very comfortable texture, electrical recline to 128 degrees, and more to 160 degrees for the flat position for the user.

More High-End Setting and more High-tech:

Manual push for open / close of big sized (87x34cm) Self-Balancing Keyboard tray, adjustable with 20cm distance range with Electrical control for the height of roof arm & monitors. Electrical control for reclining Zero Gravity position or even flat position, Manual adjusted Feet pedal for a more comfortable position for feet. Using a High-Quality PU leather Gaming chair that has Heat/Massage functions with it! The IW-Unicorn monitor mounts allow the use of a single monitor up to Ultra-wide 49” or 43” in size or triple monitor setups up to 3 x 29” other monitors configurations are available upon request. (VESA standard)

IW Scorpion

IW scorpionScorpion is basically a premium version of Unicorn with being able to hold more weight, having cup holders on the armrest, etc. The look is also similar with Scorpion being more sinister-looking but overall Steel frame and chair are the same.

Conclusion

Sadly I have not personally experienced neither of these products including Orb X but from all information I have found and looked over, I would say these products are not trying to compete with each other. Although Products are similar in nature, Orb X is aimed at hi end-users focusing on privacy and robustness while IW is filling the gap of users that would like an advanced chair but are not willing or ready to shell hi amount of money for it offering advanced chairs with advanced features in somewhat affordable price.
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KVM switch and its usage

You probably heard about switches for LAN but not a lot of people heard about KVM switches. So what exactly is KVM switch?

KVM switch

If we look at the name, it is a shortcut for Keyboard, Video & Mouse and the original idea was to have multiple computers but one keyboard, mouse, and monitor. These peripherals would be connected to the KVM switch and other computers could all use one set of these on the fly when needed.

The technology behind the switch is a little interesting since it will actively fake signals to other computers that are not using peripherals. Once they are switched to them the transition is smooth and not noticeable. In old days these switches were more important than today since on every mouse or keyboard disconnection you had to reboot the computer, and although today that is not the case CPU will still detect disconnection and on the next connection it will run through the ID of the device and try to use the existing driver and if peripheral was connected in other USB port, it will install the same driver but connect it to the new USB port.

This type of reconnection can slow down work and place unnecessary load on the CPU so that is why KVM will fake connection in order to make switching externals on the computer smooth and in nick of a time.

Modern KVM switch

These days modern KVM switches will offer you more options than just being able to switch between keyboard, mouse, and monitor. Modern switches now offer Lan, audio, and many more various options.

There are also different kinds of switches offering you only one option, like for example just a Video switch that will let you use one monitor on three computers and many more other specialized options.

Software switches

So far we talked about Hardware switches, a real device being able to take peripherals into it and switch computers on the fly. On the other line, we have software switch solutions that will have specific software installed on all computers and have it run at all times, and switching between them will be through specific software.

There are two very good and main advantages of using software solutions instead of a hardware one. First, of course, is the price, since the most popular Synergy is an open-source solution, completely free of charge. The second big advantage is that software switch is not limited to how many computers can you use. Hardware switches tend to go to a large number like 16 but if you have a large cluster of computers over a LAN, let's say 30 then the box solution might be difficult.

On the other hand software solution will switch only keyboard and mouse since each other computer will have to have some screen on it in order to work. Both solutions have their strong advantages and disadvantages and it is up to you to choose one that best suits you.

Conclusion

If you are multitasking with a lot of computers or just need your peripherals from time to time to connect to another machine then the KVM switch is something that you might find the use of. Just be aware that if you go for some cheap switch you might experience some lag on your peripherals, but if that is not a concern you can get hardware one for as low as $50 USD.

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Fix Hello Errors 0x801c004d or 0x80070490
As you know, Windows Hello offers you quick access to computers since you can log in to your Windows devices three times faster compared to passwords with the help of the camera via Face recognition and fingerprint reader. This way, Windows Hello will recognize you right away. However, there are also times when you might encounter some problems when using Windows Hello. For one, if you are trying to add the PIN method to Windows Hello on your Windows 10 computer but you suddenly encountered an error code of 0x801c004d or if you are trying to use your existing pin and you encounter an error code of 0x80070490 along with an error message that says, “Not recognized”, then read on as this post will guide you on how you can fix both of these errors. Here is the complete content for both errors:
  • 0x801c004d – Unable to enroll a device to use a PIN for login”
  • 0x80070490 - Not recognized, Pin and fingerprint are no longer options for signing in”
If you got any of these two errors, there are several potential fixes you can check out to resolve them. You can try to check for any Windows Updates or create the PIN again or check the CNG Key Isolation Service. You could also try to reset the TPM or create a new User Account. For more information, follow the instructions provided below.

Option 1 – Try checking for any available Windows Updates

The first thing you can do is to check for any available Windows Updates. It is possible that your computer may be outdated and is the reason why you’re having troubles with Windows Hello. To check for Windows Updates, just go to Settings and from there, head over to the Update and Security section and click on Windows Updates located on the left pane, and then click on the Check for Updates option. Wait until the process of checking updates is completed and if it finds new updates, install it. After you install the new Windows Updates, check if you can now add the PIN on Windows Hello or not.

Option 2 – Try creating the PIN again

The next thing you can do is to create the PIN again by signing out and signing in again and then try creating the PIN once more. If this does not work, you can try restarting your computer and creating the PIN again. You could also try removing the PIN and then change it.
  • 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 checking the CNG Key Isolation Service

The CNG Key Isolation Service is the one that stores and uses long-lived keys in a secure process complying with the common criteria requirements and it is possible that the error could be related to this service. This service is hosted in the LSA processes and provides key process isolation to private keys and associated cryptographic operations as required by the common criteria. Thus, you need to check this service to see if it’s the one that’s causing the error.
  • Tap the Win + R keys to open the Run dialog box and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
  • Next, locate the “CNG Key Isolation Service” and once you find it, double click on it to open its Properties box.
  • After opening its Properties, check its Startup type and select Manual. This is the default setting and if it is Disabled, then it’s no wonder why you’re getting errors with Windows Hello, thus, you need to enable it.
  • Once done, restart your computer and check if you can now add the PIN to Windows Hello. If you still get the error, then you might want to try setting the CNG Key Isolation Service from Manual to Automatic and then click on the Start button and see if it fixes the error or not.

Option 4 – Try to reset the Trusted Platform Module or TPM

You might also want to try resetting the Trusted Platform Module or TPM to fix the error. You can do this by opening Windows PowerShell and then executing the “Clear-Tpm” command. After that, check if the error is now resolved.

Option 5 – Try to create a new User Account

You could also try to create a new User Account on your Windows 10 computer to fix the Windows Hello error. Once you have created a new local user or administrator account in Windows 10, check if you are now able to add the PIN from this newly created user account.
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How to Fix Windows 10 Error 0x80248014

Error Code 0x80248014 - What is it?

Error Code 0x80248014 is an error that is particularly associated with the Windows 10 operating system. It generally appears during the Windows Update process and can interrupt the update installation, causing it to fail.

Common symptoms include:

  • Inability to download, install, or run updates on the Windows 10 operating system
  • The vague message that appears when the error occurs
  • Inability to finalize purchases made from the Windows Store
  • Inability to run a check to see if updates need to be installed

The resolutions available for Error Code 0x80248014 include the use of the command prompt and delving into the settings for Windows. While most users should be able to navigate the resolution methods on their own if you do not feel comfortable undertaking these steps on your own or if you aren’t able to resolve the error fully using these methods, get in touch with a qualified Windows repair technician who is familiar with issues in Windows updates.

Solution

Restoro box imageError Causes

There are several common culprits that can make Error Code 0x80248014 appear on your Windows device. The most common ones include problems with your connections, interference on the server, or problems in the settings for the Windows Store itself from which the updates are downloaded.

If you believe that your error relates most specifically to the Windows Store, you may want to jump directly to method two in order to attempt to resolve the issue.

Further Information and Manual Repair

There are a number of ways that you can try to resolve Error Code 0x80248014 on your Windows 10 operating system. The first will attempt to reset the issue using the command prompt, while the second attempts to address the issues that are associated directly with the Windows Store.

If you do not feel comfortable taking the steps below, be sure to get in touch with a qualified Windows repair technician to assist you.

Here are the top two methods to resolve Error Code 0x80248014 on the Windows 10 operating system:

Method One:  Attempt to Resolve the Error Using the Command Prompt

To use this method, employ the following steps in order:

  • Step One: To begin, open up the Start menu and select the option for the Command Prompt, choosing to run it in Admin mode.
  • Step Two: Put in the commands below, hitting the Enter key after each one:
    • net stop WuAuServ
    • %windir%
  • Step Three: Open up the Windows folder on your local hard drive. Look for the folder labeled “SoftwareDistribution” and change the name to “SDold”.
  • Step Four: Go back into the Command Prompt as an administrator and enter this command:  “net start WuAuServ”.
  • Step Five: Attempt to run your check for Updates again.

You may want to reboot your computer after running the steps above to ensure that the changes that you’ve made are fully applied to your device.

Method Two:  Reset Your Windows Store Settings

In some cases, Error Code 0x80248014 can appear on a device when the settings for the Windows Store have been altered or cannot be successfully read by the machine in question. If you believe that this is the case on your machine, you can run a simple command to renew your Windows Store settings.

To attempt to reset your Windows Store settings, open up your search bar and type in the following phrase “wsreset.exe,” then hitting Enter. Running this command will reset your Windows Store settings to their defaults.

After you reset your Windows Store settings, it may be a good idea to reboot your computer to ensure that all changes have fully taken effect on your device. Once this has been done, you can open the Windows Store back up and try to download or install the programs that you were attempting to purchase when the error code occurred.

If you are still experiencing the effects on your Windows 10 operating system or if you have not been able to follow the steps above to completion, it may be time to get in touch with a qualified Windows repair technician to assist you with the error resolution process.

Method Three: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

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10 Worst Computer Viruses in history
Computers viruses, worms, ransomware, etc. are kinds of malicious software that no user should take lightly. On several occasions, we have touched upon security steps that each user should take in order to protect its identity and data. Sadly sometimes even when all precautions are taken some malware can still slip through and wreak havoc. Today we are looking at some of the worst or the best, depending on your view that has indeed wreaked plenty of havoc.

viruses10 worst computer viruses in history

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

1. Mydoom – $38 billion

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

2. Sobig – $30 billion

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

3. Klez – $19.8 billion

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

4. ILOVEYOU – $15 billion

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

5. WannaCry – $4 billion

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

Ransomware strikes again

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

6. Zeus – $3 billion

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

7. Code Red – $2.4 billion

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

8. Slammer – $1.2 billion

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

9. CryptoLocker – $665 million

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

10. Sasser – $500 million

The Sasser worm was written by a 17-year-old German computer science student named Sven Jaschan. He was arrested at the age of 18 in 2004 after a $250,000 bounty was posted for the computer virus’ creator. A friend of Jaschan’s tipped authorities that the youth had penned not only the Sasser worm but also the damaging Netsky.AC attack. Jaschan was given a suspended sentence after it was found he was a minor when he wrote the malware. The Sasser worm crashed millions of PCs, and though some reports put damages at $18 billion, the relatively low infection rate suggests a more likely cost of $500 million. Other notable viruses The top 10 worst computer viruses above are just the ugly tip of a gargantuan digital iceberg. With a million new malware programs popping up every 3 years, we may miss the forest for a few outstanding trees. Here are just a few more viruses that have wreaked havoc over the years: Mimail: This worm tried to harvest data from infected machines to launch a string of DDoS attacks, but was relatively easy to remove. Yaha: Yet another worm with several variants, thought to be the result of a cyber-war between Pakistan and India. Swen: Written in C++, the Swen computer worm disguised itself to look like a 2003 OS update. Its financial cost has been pegged at $10.4 billion, but not reliably. Storm Worm: This worm showed up in 2007 and attacked millions of computers with an email about approaching bad weather. Tanatos/Bugbear: A 2002 keylogger virus that targeted financial institutions and spread to 150 countries. Sircam: A computer worm from 2001 that used counterfeit emails with the subject line, “I send you this file in order to have your advice.” Explorezip: This worm used fake emails to spread to every machine on thousands of local networks. Melissa: The most dangerous computer virus in 1999, Melissa sent copies of itself that looked like NSFW pics. The U.S. FBI estimated cleanup and repair costs at $80 million. Flashback: A Mac-only virus, Flashback infected over 600,000 Macs in 2012 and even infected Apple’s home base in Cupertino, Calif. In 2020, there’s now more malware on Macs than on PCs. Conficker: This 2009 virus still infects many legacy systems and could do significant damage if it ever activates. Stuxnet: This worm is reported to have destroyed Iranian nuclear centrifuges by sending damaging instructions.
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Change date and time inside Windows 11
date and time windows 11Same as Windows 10, Windows 11 also keeps track of date and time using an internet time server. But in a case that you need to change the date or time for any kind of reason here is a guide for that process:
  1. Press ⊞ WINDOWS + I to open settings
  2. Click on Time & Language in Taskbar
  3. Inside Time & Language click on Date & Time
  4. Turn off Set Time Automatically by clicking on the switch next to it
  5. Below find Set the date and time manually and click on Change
  6. Inside, Change Date and Time window use the drop-down menu to set desired date and time
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How to Fix Error Code 0x8007007B on Your PC

Error Code 0x8007007B (Code 0x8007007B) – What is it?

Error code 0x8007007B (Code 0x8007007B) is an error that occurs when you attempt to activate Windows 10, as well as Windows Server 2008, Windows Vista, Windows 7, Windows 8, or Windows Server 2012.

Common symptoms include:

  • You will see an error message like this: “Error 0x8007007B 'The filename, directory name, or volume label syntax is incorrect”.
  • If you are using volume-licensed media to install: Windows 7, Windows 8, Windows Vista Business, Windows Vista Enterprise, Windows Server 2008 R2, Windows Server 2008, Windows Server 2012, Windows 10.
  • Your computer is not connecting the activation wizard to a Key Management Service (KMS) host computer.

Solution

Restoro box imageFurther Information and Manual Repair

Error Code 0x8007007B usually occurs when a product key has been activated too many times. Blocking activation aids in avoiding abuse of the key. If abuse of the key is not the case, it is possible to get the key reset, or you may receive a new key altogether. When you are not sure that you can complete these methods yourself, as they do contain advanced steps, it would be wise to consult a computer repair technician to avoid making the problem any worse.

Generally, the solution can be simple; it is just dependent on how comfortable you are with getting technical in your computer. Volume licensed media means that the media has a preset number of times that it is allowed to be activated. This helps to avoid misuse of the product. Some people install the Windows 10 program multiple times on their computer if they are software developers or do certain types of software testing. It is important to know the cause in order to effectively find the solution.

Method One:

  1. From the desktop screen, press the Windows key and S, type “Command Prompt”. Then, right-click on Command Prompt in the results. Select Run as Administrator.  Click Yes when asked about requesting permission.
  2. In the Command Prompt box, enter the command: slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
  3. The x's represent the product key. Replace these with your unique product key.
  4. Type in the following command into the “Command Prompt” window: slmgr.vbs -ato
  5. Click Enter
  6. Restart your computer and try to activate windows again. It should not show the error code anymore.

Method Two:

  1. While on the desktop, press the Windows key and R.
  2. A window saying Run should open.
  3. Type in the following command: Slui 3
  4. Press ENTER and a window should appear.
  5. This window asks for you to enter the operating system activation product key.
  6. Enter this key in the space provided.
  7. After entering this, click Activate.
  8. Restart your computer now.
  9. Check for activation. The Error code should be gone now.

Method Three:

  1. Open the Command Prompt with access as administrator just as in Method One, and enter the following command: sfc /scannow
  2. The command will complete the tasks. This will take some time so just let the computer do its thing and work. Let the sfc finish the scan.
  3. When the scan is complete, restart the computer.
  4. Check for the activation. The error code should be gone at this point.
  5. If it is gone, revisit Method One or move on the Method Four.

Method Four:

Call the Microsoft Support Team and explain the problem in as much detail as you can give. Give the team the error code 0x8007007B and ask to have a different product key. When they give you the new product key, repeat Method 2. The Microsoft Support Team will either change your product key, or they will reset your current product key so that it can be used for activation again.

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Enabling the new Light Mode Theme in Windows
In case you don’t know, Windows now comes with an all-new Light Mode theme which gives a light accent color to the Taskbar, Start, and Notification Area. Aside from that, it also brings new improvements and features. This new theme is somewhere between dark and completely white and in this post, you will be guided on how you can enable this new feature in your Windows 10 computer. Although the Light Mode sure looks stunning and a lot of users love it, it actually switches all the apps plus the Taskbar and Start Menu to the light mode which was not the case before. In addition, the icons in the system tray area, as well as the notification center, are also inverted. To resolve that, there are several ways you can customize the light mode theme as well as activate it in the Windows 10 v1903. How? Refer to each one of the options given below.

Option 1 – Via Theme settings

Windows 10 brought a new theme called “Windows (Light)” which will enable the light mode automatically and will set the accent colors to automatic. This will also apply the new Windows 10 wallpaper on your desktop. To enable Windows (Light), all you have to do is right-click on the desktop and select Themes from the left menu. After that, select the Windows (Light) option under the Change Themes section. This will apply to the Windows (Light) mode.

Option 2 – Via Color settings

The second and more customizable way to activate the light mode is via Settings. Aside from the Light and Dark, Windows also introduced a Custom color option which allows you to decide the default Windows and App mode independently. To enable Light mode via Settings, refer to the steps below.
  • First, open Settings and go to Personalization.
  • After that, select “Colours” from the left menu.
  • Next, select Light under the “Choose your color” section to activate the light mode in Windows 10. This will activate light mode all over your computer.
Note: If after activating light mode, you find that you don’t like it and you want to keep things as they were before (Light App Mode and Dark Windows Mode), you can achieve that using the Custom option. All you have to do is select Custom from the drop-down menu to decide the default Windows and app mode independently. After that, select light under the default app mode and dark under the default Windows mode so that you can keep things as they were before the update. On the other hand, you can also try the opposite version of the light Windows mode and Dark app mode since Windows increased the level of customizability which allows users to use an option of a completely light mode.
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