Switch audio devices in Windows 11 taskbar

PFN_LIST_CORRUPT Blue Screen - What is it?

PFN_LIST_CORRUPT is a blue screen of death error code. It occurs when the PFN (Page Frame Number) list becomes corrupt. The Page Frame Number is basically used by your hard drive to determine your location of each one of your files on the disk. This error may occur when starting up the program or while using it. Blue screen of death errors occurs without any warnings. The program disrupts all of a sudden and the computer screen turns blue.

Solution

Error Causes

PFN_LIST_CORRUPT Blue Screen error may occur due to multiple reasons. Some of the common reasons include:

• Hardware problems
• Device driver issues
• Registry problems
• Viral Infection

It is recommended to resolve the PFN_LIST_CORRUPT Blue Screen of Death error immediately without any delay virtually because this error can be quite fatal to your PC. It can pose serious threats to your system like system freeze, crash, failure, and valuable data loss. Furthermore, if the error is related to viral infection, it can expose you to privacy issues, data breaches, and cybercrime too.

Further Information and Manual Repair

This is a critical PC error but easy to resolve. You don’t need any technical expertise to fix this error on your PC. Here are some quick and easy methods to resolve PFN_LIST_CORRUPT Blue Screen error:

Method 1: Install Compatible Device Drivers

Sometimes when new hardware is added to the PC, you need to install updated versions of the device drivers to ensure there are no incompatibility issues. Incompatibility between the hardware and device drivers may generate PFN_LIST_CORRUPT Blue Screen of death error on your screen. To resolve, it is advisable to download and install the latest updated versions of the device drivers from the manufacturer’s website.

Method 2: Scan for Viruses

PFN_LIST_CORRUPT Blue Screen of Death error may occur due to viral infection too. Viruses and spyware enter your PC when you log on to unreliable websites and download programs from there or open phishing emails on your PC. These viruses corrupt and damage programs and files resulting in such errors. To fix the issue, you need to install a powerful antivirus and ensure all kinds of viruses and spyware are detected and removed from your system.

Method 3: Clean and Restore the Registry

PFN_LIST_CORRUPT Blue Screen error indicates poor PC maintenance. When you don’t clean and remove unnecessary and obsolete files like junk files, bad registry keys, cookies, internet history, temporary files, and invalid entries from the registry, the registry overloads and gets damaged. These files accumulate taking up a lot of disk space and also corrupt system files. If these files are not removed timely, it results in registry issues like a blue screen of death errors and run-time errors. To remove these files and clean the registry, you need to install a powerful registry cleaner. Whether the underlying cause for PFN_LIST_CORRUPT Blue Screen of Death error on your PC is viral infection or registry issues, to resolve the BSOD error code in seconds download Restoro. This is a cutting-edge and multi-functional PC fixer deployed with both an antivirus and a registry cleaner. Additional features include a system optimizer too. It is user-friendly and easy to operate. You can download it on all Windows versions without any hassle. It is safe and bug-free. The registry cleaner feature scans and removes all unnecessary files, cleans and repairs the registry while the antivirus utility simultaneously removes all kinds of malicious software including spyware, viruses, Trojans, and malware. Click here to download Restoro now and resolve the PFN_LIST_CORRUPT Blue Screen of Death error immediately!

For a while now, Microsoft has been working hard to add various built-in troubleshooters in Windows 10. In fact, there is a troubleshooter for almost every standard or common error in Windows 10. And now with the newly released Windows 10 v1903, Microsoft has added the Recommended Troubleshooting which allows Windows 10 to automatically fix a lot of critical issues on your computer, and in this post, you will be guided on how you can turn on or off the Recommended Troubleshooting in Windows 10. The Microsoft Diagnostic & Feedback data only provides two settings – Basic and Full. So if you want to turn off the Recommended Troubleshooting for some reason, the only way to do so is to stop it from collecting complete data from your PC. And to turn it on or off, you can choose to switch between them. To do that, navigate to Settings > Privacy > Diagnostics & feedback and from there, select Basic under the Diagnostic Data section. After that, go back to Settings and go to Update & security > Troubleshoot. Once you’re there, you should see a warning message saying, “Share Full Diagnostic data to get additional troubleshooting recommendations”. Based on the message, Microsoft will only offer the recommended troubleshooting based on the Full Diagnostic data which it collects from your computer. On the other hand, if you know how to navigate and use the Windows Registry, then you can enable or disable the Recommended Troubleshooting via Registry Editor but before you proceed, make sure that you create a System Restore point. Once that’s covered, follow these steps:

• Tap the Win + R keys to open the Run dialog box and type “regedit” in the field and tap Enter to open the Registry Editor.
• Next, navigate to this registry path: HKEY_LOCAL_MACHINESOFTWAREMicrosoft
• From there, look for the key named “WindowsMigration”. If you can’t find it, just right-click on the left pane and create a new key and then name it “WindowsMigration”.
• After that, create a DWORD “UserPreference” and double click on it to set its value to “0” if you want to turn it off or “1” if you want to turn it on.
• Exit the Registry Editor and restart your computer to apply the changes made.

Note: The Recommended Troubleshooting functionality can look into the error logs sent back to the Microsoft team and use an algorithm to set up a solution for you and they’re nothing but Diagnostics and Feedback data that Windows collects and sends back to Microsoft. Moreover, the recommendations are only visible if you are connected to the internet, else it will show the same message.

If you suddenly find the Windows Recovery Environment not working and you see an error message saying, “Could not find the recovery environment”, then you’ve come to the right place as this post will guide you on how you can fix it. In times when you can’t boot into the Windows Recovery Environment, there could be several reasons behind it. However, have you ever wondered where exactly the Windows Recovery Environment is in your computer? Windows initially places the Windows RE Image file in the installation partition during Windows Setup so if you have installed Windows in the C drive, you can find the Windows RE at the C:/Windows/System32/Recovery or C:/Recovery folder. Keep in mind that this folder is hidden and later on, the system copies the image file into the recovery tools partition to make sure that one can boot into recovery if there are any issues with the drive partition. The “Could not find the recovery environment” error mostly occurs if the Windows Recovery Environment is disabled or if the “Winre.wim” file is corrupted. Thus, to fix this error, you need to refer to the given suggestions below.

Option 1 – Try to enable Windows Recovery Environment

• In the Windows Start Search, type “PowerShell” and from the search results that appear, right-click on Windows PowerShell and then select the “Run as administrator” option to open it with admin privileges.
• Next, type the “reagentc /info” command and tap Enter to execute it.
• After that, if the output states that Status is enabled, then you’re all set.
• Now type the “reagentc /enable” command and tap Enter to enable the Windows Recovery Environment. You will see a success message at the end signifying that Windows RE is available.

Option 2 – Try to fix the corrupted or missing “Winre.wim” file

If the Winre.wim file is either corrupted or missing, you need to get a new copy of this file from another computer where the Windows RE is working. Once you’re able to get a new copy of the Winre.wim file, you have to set the image path to a new location. For more details, refer to these steps:

• First, type “Powershell” in Windows Start Search and right-click on Windows PowerShell from the results, and select Run as administrator.
• Next, execute the given command below to change the path of the WIM file to the new location. Note that the steps should be used when the file path of the Windows Recovery Environment is different from the usual spot.

Reagentc /setreimage /path C:RecoveryWindowsRE

• As mentioned, if the file is corrupted, you just have to get a new copy from another PC but before you do that, make sure that the WINRE on that computer is disabled (just enable it later on) and then place it in the C:/Recovery path and then set its path again using the command given above and then verify its path by executing the following command.

reagentc /info command

Note: Since the Recovery folder is hidden as well as the WINRE folder in it and you won’t be able to access them using the Windows File Explorer, you need to use the Windows PowerShell or Command Prompt so that you can access them.

Option 3 – Try checking and fixing the WinRE Reference in the Windows Boot Loader

The Windows Boot Loader is the one that determines if it has to load the Windows Recovery Environment. It could be that the boot loader is pointing to an incorrect location which is why you’re getting the error. To resolve it, you have to check and fix the WinRE Reference in the boot loader. How? Follow these steps:

• In the Windows Start Search, type “PowerShell” and from the search results that appear, right-click on Windows PowerShell and then select the “Run as administrator” option to open it with admin privileges.
• After that, execute the “bcdedit /enum all” command.
• Next, look for an entry in the Windows Boot Loader identifier set as Current and look for “recoverysequence” in that section and take note of the GUID.
• Ensure that the device and the osdevice items show the path for the Winre.wim file and that they are the same. If not, you need to point the current identifier to the one which has the same.
• Once you’ve found the new GUID, execute this command: bcdedit /set {current} recoverysequence {GUID_which_has_same_path_of_device_and_device}
• Now check if the error in the Recovery Environment is fixed or not.

Option 4 – Try creating a Recovery Media

You could also try creating a Recovery Media to resolve the error in the Windows RE. All you have to do is download the Windows 10 ISO file using the Media Creation tool and then create a recovery drive. Once you’re done, check if it fixes the problem or not.

Microsoft sent an email to users on the Dev build channel saying that the company intends to push some builds that don’t represent what consumers will receive with Windows 11 when it officially releases. In other words, these are going to be some rather buggy builds that won’t be too enjoyable to use. The company recommends users switch from the Dev to the beta channel if they aren’t prepared to deal with the instability. We’ll have to wait and see just how buggy these builds are, but if Microsoft is actually sending out a warning about them it is very likely that builds will be plagued with issues and maybe even stability problems.

Back to Windows 10

How we can expect some buggy build of Windows 11 if you prefer a stable system over new features maybe best decision would be to switch back to Windows 10 until the new OS hits official release.

Switching from dev build channel to beta channel

Another solution, if you do not want to deal with too many issues, is to switch from Dev build channel to beta where things will be more stable. Follow the guide below in order to quickly switch to the beta channel. Following instructions only apply to Windows 11 installations that are linked up to the Windows Insider program, not clean installation of OS.

1. Press ⊞ WINDOWS + I to open settings
2. Inside settings click on Windows update
3. In Windows Update click on Windows Insider Program
4. Inside click on Choose your Insider Settings
5. Click on the button next to Beta Channel to select it (you can switch back to the Dev channel here if you change your mind)

The setting will be saved automatically and from now on you will only receive beta channel updates.

If you encounter the BAD_SYSTEM_CONFIG_INFO Blue Screen error in your Windows 10 PC, then read on as this post will guide you in fixing this issue. Usually, this kind of Blue Screen error is caused by some issues with the Boot Configuration Data file. The main issue inside of the Boot Configuration Data file is that either some boot order files or older files might be in conflict with the newer ones or the stable ones and thus triggering the BAD SYSTEM CONFIG INFO Blue Screen error. This kind of Stop error also indicates that there is an error in the Windows Registry which is why you need to update potential culprit drivers as well as edit some entries in the Registry if need be. But before you get started, make sure that you create a System Restore Point first. After creating a System Restore Point, try to boot your computer into Safe Mode and then restart your computer normally. However, if it doesn’t work, proceed to the given options below.

Option 1 – Run System Restore

Performing System Restore might help you in fixing the BAD SYSTEM CONFIG INFO Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• 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 check if the problem is fixed or not.

Option 2 – Update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer.

Option 3 – Try fixing the Windows Registry files

In order to fix the Windows Registry files, you need to make a bootable Windows 10 USB drive and then boot your PC using it. To do so, refer to the steps below.

• Once you see the Welcome Screen, click on Next.
• Then click on the “Repair your computer” option located on the bottom-left section of the window.
• Next, click on Troubleshoot > Advanced Options > Command Prompt.
• After opening Command Prompt, execute each one of the commands listed below in the sequence that they are given:
  • CD C:WindowsSystem32config
  • ren C:WindowsSystem32configDEFAULT DEFAULT.old
  • ren C:WindowsSystem32configSAM SAM.old
  • ren C:WindowsSystem32configSECURITY SECURITY.old
  • ren C:WindowsSystem32configSOFTWARE SOFTWARE.old
  • ren C:WindowsSystem32configSYSTEM SYSTEM.old
• After executing the commands given above, type in the next ones below and make sure to execute them in the given sequence below.
  • copy C:WindowsSystem32configRegBackDEFAULT C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSAM C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSECURITY C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSYSTEM C:WindowsSystem32config
  • copy C:WindowsSystem32configRegBackSOFTWARE C:WindowsSystem32config
• Now type “exit” to close Command Prompt.
• Restart your PC for the changes to take effect.

Option 4 – Run a Memory Check to test RAM

On the other hand, you can also fix the BAD SYSTEM CONFIG INFO Blue Screen error by running a Memory Check using the Windows Memory Diagnostic. Refer to these steps to do so.

• Tap the Win + R keys to open the Run dialog box.
• Then type “mdsched.exe” in the field and hit Enter to open the Windows Memory Diagnostic.
• After that, the Windows Memory Diagnostic will give out two options such as:

1. Restart now and check for problems (recommended)
2. Check for problems the next time I start my computer

• Select any of the given options. After that, your computer will restart and check for memory-based issues upon the restart. If there are any issues, it will automatically them.

Option 5 – Rebuild BCD files and repair MBR files

Like what you did on the third option above, you also have to make a bootable Windows 10 USB drive for this option and then boot your Windows 10 PC using it.

• Once you get to the Welcome Screen part, click on Next.
• Afterward, click on the Repair your computer option located on the bottom-left part of the window.
• Then click on Troubleshoot.
• Next, select the Advanced Options and then Command Prompt.
• Once Command Prompt has been pulled up, enter each one of the following commands and in the sequence that they are given to rebuild BCD files and repair MBR files:
  • bootrec /repairbcd
  • bootrec /osscan
  • bootrec /repairmbr

• Now type “exit” to close Command Prompt and then restart your computer to successfully apply the changes made.

Error Code 45 – What is it?

Error Code 45 is a common device manager problem that users encounter on any Windows 2000 and later operating system versions.

The error occurs when your Windows system fails to acknowledge the connected device by either stating that the device is not present or that it was previously attached to a computer.

The error pops up and appears on your computer screen with the following message:

“Currently, this hardware device is not connected to the computer” (Code 45)

Solution

Error Causes

The error is prompted either due to a temporary system file malfunction or a problem in the Windows registry system files. In the latter case, it could be due to a damaged or corrupted Windows registry.

Further Information and Manual Repair

While it may appear that Error Code 45 is a serious threat to your computer, it cannot be farther from the truth. Error Code 45, unlike other error codes, is the easiest one to fix. Here is how you can do it.

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 solve the error.

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

It is often only a case of reconnecting the device back to your computer which helps eliminate the error and does not require any particular resolution other than this.

Method 2 – Install DriverFIX

Although reconnecting the disconnected device is all you need to fix the error code, it is always safer to fix your Windows registry system files by using a program like DriverFIX.

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 corrupted or damaged registry.

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 now!

The latest security vulnerability was discovered inside both Windows 10 and Windows 11 letting any user access admin privileges inside the operating system. This can, of course, be used by a potential attacker to get full control of the system. The problem lies in Microsoft's security rules assigned to the Windows Registry and the Security Account Manager. Both for some reason have reduced restrictions allowing any local user to fully access the files without administrator privileges. The problem is even more amplified if we think about Security Account Manager which includes all account data including the passwords of all users using the same PC. This can provide a potential attacker with all information and let them log on into the administrator account for full control. Microsoft is aware of the matter and is tracking it with code CVE-2021-36934, and includes a complete workaround for the issue, which includes restricting access to  %windir%\system32\config and deleting any restore points or Shadow volumes that were created before that point until the hole is plugged with an official security patch.

Windows is one of the most popular operating systems in today's world. Plenty of software and plenty of hardware is working on it without any issues. In order for Windows to deal with this ever-growing hardware and in order for hardware manufacturer's to have stable products in the Windows environment is accomplished via Drivers. A driver is a small piece of software whose sole purpose is to control and communicate with specific hardware and create a bridge between it and Windows itself. it is made in such a way that even if it brakes the rest of the operating system will continue working uninterrupted. Having updated drivers means better performance and better stability for device performance so it is crucial to have the latest drivers installed. Outdated drivers can also lead to some security issues which could be exploited by malicious applications. Here, in today's article, we are presenting you with 4 ways on how to keep your drivers updated and tidy for best performance and stability. The list goes from the most simple way to the most complex and time-consuming one.

1. Use one-click solution, DRIVEFIX

   The most simple and most straightforward solution, install DRIVEFIX, and with only one click on a mouse button, you can have all drivers fixed and updated. This application is made for this purpose and it is doing its job pretty well.

2. Update Windows

   Windows updates come with new drivers for new hardware and with newer versions of existing ones, do update on regular basis and you should have all of your drivers up to date.

3. Download drivers from the manufacturer's website

   Go to the manufacturer's website for your device and download and install the latest driver package.

4. Use device manager to update drivers

   Go to the device manager and right-click on the device which you would like to update the driver. Choose update device driver.

There are times when you see a message in Windows Defender saying, “The Threat Services has stopped, Restart it now” when you try to use it. This kind of error is usually fixed by simply clicking on the Restart now button. However, if the error still appears even after you restart your computer and you see another message that says, “Unexpected error, Sorry, we ran into a problem”, then continue reading as this post will guide you in resolving this issue in Windows Defender. Before you proceed with the given fixes below, you have to create a System Restore point first. This way, you can always undo any changes you’ve made in case something goes wrong.

Option 1 – Make sure that the Windows Defender Services are started

The Windows Defender Advanced Threat Protection service is the one that protects your computer from advanced threats by monitoring and reporting security events that happen on your computer. This is why you have to make sure that this, as well as other required services in Windows Defender, are set to their default values and are started. To do so, follow these steps:

• In the Cortana search box, type “services” and click on the Services icon to open the Services Manager. Alternatively, you can also tap the Win + R keys to launch the Run prompt and then type “services.msc” in the field and hit Enter to open the Services Manager
• After opening the Services Manager, look for the following services and make sure that their Startup type is set to their default values:
  • Windows Defender Advanced Threat Protection Service – Manual
  • Windows Defender Antivirus Network Inspection Service – Manual
  • Windows Defender Antivirus Service – Manual
  • Windows Defender Firewall Service – Automatic
• You can right-click on each one of the listed services and then select Start to start them.
• And if some of the services don’t have their default values, just double-click on the Services to change the Startup types and select the correct option from the drop-down menu of the Startup type under the Properties box.
• Next, set up the Startup type of these services to Automatic and then click on the Start button if the services are not running yet.
• Now click on the Apply and OK buttons to save the changes made and then see if it fixed the problem or not.

Option 2 – Try modifying some entries in the Windows Registry

If the first option didn’t work in fixing the problem, you can try to alter some entries in the Windows Registry using the Registry Editor.

• First, tap Win + R keys to open the Run dialog box.
• Then type “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to this registry path: HKLMSoftwarePoliciesMicrosoftWindows Defender
• From there, look for the “DisabledAntivirus” and “DisableAntiSpyware” DWORDS from the right pane and change each one of their values to “0”. On the other hand, if you don’t see any of these DWORDS, you can create them instead and give each one of them a 0 value.
• To create a DWORD, simply right-click on any empty space and select New > DWORD. Then name them both as “DisabledAntivirus” and “DisableAntiSpyware”.
• Afterward, set the value of the newly-created DWORDS to 0.
• Now exit the Registry Editor and reboot your PC to apply the changes made and then check if it has fixed the error in Windows Defender or not.

If you receive an error code of “0x80073afc” in Windows Defender after you boot your Windows 10 computer or when you try to manually run Windows Defender, then it could be that the Windows Defender files are corrupted. In such cases, this error could also occur if there is third-party security software that interferes with the smooth functioning of this Microsoft Security Client. If you are one of the users who are currently facing this issue, then here are some suggestions you can check out to resolve the Windows Defender error code 0x80073afc.

Option 1 – Try to check the status of all the Windows Defender-related services

• In the Cortana search box, type “services” and click on the Services icon to open the Services Manager. Alternatively, you can also tap the Win + R keys to launch the Run prompt and then type “msc” in the field and hit Enter to open the Services Manager
• After opening the Services Manager, look for the following services and make sure that their Startup type is set to their default values:
  • Windows Defender Advanced Threat Protection Service – Manual
  • Windows Defender Antivirus Network Inspection Service – Manual
  • Windows Defender Antivirus Service – Manual
  • Windows Defender Firewall Service – Automatic

• You can right-click on each one of the listed services and then select Start to start them.
• And if some of the services don’t have their default values, just double-click on the Services to change the Startup types and select the correct option from the drop-down menu of the Startup type under the Properties box.
• Next, set up the Startup type of these services to Automatic and then click on the Start button if the services are not running yet.
• Now click on the Apply and OK buttons to save the changes made and then see if it fixed the problem or not.

Option 2 – Try to re-register the concerned DLL files

You could also try to re-register some Dynamic Link Library or DLL files on your computer as this could also help in fixing the Windows Defender error.

• In the Start search, type “cmd” and from the search results that appear, right-click on Command Prompt and select the “Run as administrator” option from the context menu.
• After opening Command Prompt as admin, type the following commands one after the other:
  • regsvr32 dll
  • regsvr32 dll
  • regsvr32 dll
  • regsvr32 dll
• Once you’ve entered the commands given above, it will re-register the concerned DLL files in your system.
• Now restart your computer for the changes to take effect.

Option 3 – Try to use the Registry Editor

• Tap the Win + R keys to open the Run dialog box,
• Then type “Regedit” in the field and hit Enter to open the Registry Editor.
• Afterward, navigate to this registry path: ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Options
• Next, look for the DWORDs named “MSASCui.exe”, “MpCmdRun.exe”, “MpUXSrv.exe” and “msconfig.exe”.
• If you can’t find these DWORDs, refer to the next given option below.
• Restart your computer.

Option 4 – Check the Environmental Values

• Type “View advanced system settings” in the Windows search box and select the appropriate result.
• This will open a new mini window. From there, go to the Advanced tab and click on the “Environment Variables…” button located at the bottom part of the window.
• Next, look for the “%ProgramData%” variable name and make sure that its value is set to C:/ProgramData.
• Then click OK to save the changes made.

Option 5 – Run the System File Checker Scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files to good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Restart your computer.

Option 6 – Perform a System Restore

Performing a System Restore on your computer can also help you fix the Windows Defender error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• 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 check if the problem is fixed or not.