Couldn’t open PDF in Edge Error in Windows

Windows 11 has been officially presented during Microsoft’s virtual event on June 24^th. Since presentation internet has been pretty live and busy with a discussion about it, some discussions are positive, some not so much but that is expected and it happens always when a new product is presented. One of information that we have about Windows 11 is tied to the home edition of this OS, Windows 11 home edition will require an internet connection at setup, and a Microsoft account in order to be installed and used. Previous versions of Windows could be installed and used with local accounts but it seems Microsoft has abandoned that idea for its new OS. OS will be delivered mostly as updates or via internet download so internet and online requirement make sense but why it cannot use the local account and must have a Microsoft one is beyond me.

Lately, some users reported getting an error that says, “System doesn’t have any USB boot option, Please select other boot option in Boot Manager Menu” when they tried to reinstall the Windows 10 operating system on their PCs or boot from an installation media. If you have the same problem, then this post should help. This kind of error is applicable to multiple devices by various OEMs and is mostly due to the Secure boot being enabled, or the Legacy or CSM support being disabled. It could also be that the bootable USB device was not correctly made and so on. Whatever the cause may be, here are some suggestions you need to check out to resolve the “System doesn’t have any USB boot option, Please select other boot option in Boot Manager Menu” error and reinstall Windows 10 successfully.

Option 1 – Disable the Secure Boot in the BIOS

Disabling the Secure Boot in the BIOS settings is definitely recommended to resolve the error. To disable Secure Boot, here’s what you have to do:

• First, boot your computer into Windows 10.
• Next, go to Settings > Windows Update. From there, check if there is anything that you have to download and install if you see any available updates. Usually, OEMs send and update the list of trusted hardware, drivers, and operating systems for your computer.
• After that, go to the BIOS of your computer.
• Then go to Settings > Update & Security > Advanced Startup options. If you click on Restart Now, it will restart your computer and give you all the advanced options.
• Next, select Troubleshoot > Advanced Options. As you can see, this screen offers you further options including System restore, Startup repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
• Select the UEFI Firmware Settings which will take you to the BIOS.
• From there, go to the Security > Boot > Authentication tab where you should see Secure Boot. Note that every OEM has its own way of implementing the options so it varies.
• Next, set Secure Boot to Disabled and set Legacy Support to On or Enabled.
• Save the changes made and exit. Afterward, your computer will reboot.

Option 2 – Try to reset the BIOS or the UEFI Settings

If updating the BIOS didn’t help in fixing Error 0199, you can try to reset the BIOS instead.

• Start your computer and tap the F10 key during the booting process to enter the BIOS. If it does not work, you can try tapping the F1 or F2 key as well as the Del key.
• Once you’re already in the BIOS, tap the F9 key to get the prompt to RestoreLoad default configuration now for the BIOS.
• Next, click on Yes and then follow the next on-screen instructions that appear to set the BIOS back to its default settings.
• Once you’re done restoring the default settings of the BIOS, restart your computer and then check if it now boots properly.

Option 3 – Make a proper bootable USB Drive/Stick

To make a proper bootable USB drive, you need to use the Windows Media Creation tool. The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.

• After making the bootable drive, you need to plug it into your computer and then reboot.
• Next, tap the F10 or Esc key to open the boot options.
• Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

Option 4 – Try enabling Legacy or CSM boot support

If the Legacy or CSM boot support is disabled, then it’s no wonder why you’re getting an error. Thus, you need to enable it by following these steps:

• Open Settings and go to Update & Security > Advanced Startup options.
• Next, click on Restart Now to reboot your computer.
• After that, select Troubleshoot > Advanced Options where, you will see more options such as System Restore, Startup Repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
• From there, enable Legacy Support and then save the changes and exit. This will restart the computer.
• Once your computer has restarted, check if the error is now fixed.

Page Fault in Non-Paged Area is a blue screen error usually happening with faulty drivers but it can come from different issues like faulty RAM. In this short article, we will cover usual ways on how to approach and solve this error.

Solving Page fault in Non-Paged Area

Rollback using system restore

Simple and easy solution, roll back to the previous system restore point where Windows was stable and working.

Fix Page Fault in Non-Paged Area using device manager

1. Press ⊞ WINDOWS + X to open the hidden menu
2. Click on device manager
3. Find a device with a question mark and right-click on it
4. Click on the rollback driver button

Fix via command prompt

1. Press ⊞ WINDOWS + X to open the hidden menu
2. Click on command prompt (admin)
3. Inside command prompt type in SFC / scannow and press ENTER
4. Wait for the process to be finished and then reboot the PC

Fix via DISM tool

1. Press ⊞ WINDOWS + X to open the hidden menu
2. Click on command prompt (admin)
3. Inside command prompt type in DISM /Online /Cleanup-image /Restorehealth and press ENTER
4. Wait for the process to be finished and then reboot the PC

Page fault in Non-Paged Area via a dedicated tool

Sometimes manual and provided solutions just simply cannot cut it because the issue is triggered also with something else and not just a single issue. Use DRIVERFIX to fix this specific issue with a single click.

BSOD or Blue Screen of Death errors are one of the toughest issues you can encounter in Windows 10 as well as the hardest ones to resolve as they simply shut the system down or restart it abruptly and claims that it isn’t possible to boot Windows again. One of the difficult BSOD errors is the Machine Check Exception BSOD error. The reason why it is hard to fix is that in most cases, it occurs soon after Windows loads which gives users little to no time in resolving it. To make things worse, the system also freezes right before it displays the blue screen error and shuts the system down. Usually, the Machine Check Exception Stop error occurs due to the failure or overstressing of the hardware components. And in the case of almost all Blue Screen of Death errors, the issue usually has something to do with the drivers. So if you frequently see this BSOD error from time to time, now’s the time to act on it by following the solutions given in this post.

Option 1 – Update the Device 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. Look for the device driver you and then select either “Update driver” or “Uninstall device”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• If you have chosen to uninstall the driver, follow the screen options to complete the process and then restart your PC.
• Connect the device and Scan for hardware changes – you can see this option under Device Manager > Action.

Option 2 – Try running the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that 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.

Option 3 – Try running the System File Checker

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 with good system files that might be causing the Machine Check Exception BSOD error. 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.

Option 4 – Run the Startup Repair

In the Blue Screen where the Machine Check Exception error is displayed, tap the F8 key to go to the Startup Settings where you can find Startup Repair and then run it. Note that this is a must-try option especially if you are unable to start your computer and if you can use your computer for a few moments.

Option 5 – Run the DISM tool

There are cases when the Machine Check Exception error is caused by the Windows System Image so you need to repair it using the DISM or Deployment Imaging and Servicing Management tool. The DISM tool is another command-line tool in the Windows operating system that could help users fix various corrupted system files. To use it, follow these steps:

• Open the Command Prompt as admin.
• Then type in this command: Dism /Online /CheckHealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 6 – Try resetting the BIOS

If you have made some modifications in the BIOS that might have caused this error, you have to revert those changes to resolve the issue. On the other hand, if you have made a couple of changes and you do not remember which is which, you might have to reset the BIOS.

Option 7 – Try resetting Windows 10

To fix this BSOD error, you can try resetting Windows 10. Doing so won’t get rid of any file in your system – instead of erasing all your media files and documents, this reset option resets all the system settings and files.

Bad_Pool_Header Error - What is it?

Bad_Pool_Header is one of the types of BSOD (Blue Screen of Death) error codes. This error triggers a problem with Windows memory allocation. When this error message occurs, the screen turns blue and locks the user out of the application running on the system. The computer shuts down or restarts.

Solution

Error Causes

There is no one particular cause for the occurrence of the Bad_Pool_Header error code. It may appear on your system due to multiple reasons such as:

• Device driver issues
• Cluttered disk
• Disk writing issues
• Faulty memory hardware

Driver issues and disk writing issues occur when your try to update new driver versions. During this process, users often forget to remove the files of the uninstalled version from the registry. And due to the presence of the uninstalled driver files in the registry updating and disk writing becomes an uphill task which leads to the Bad_Pool_Header display on the computer screen. The main database of your system is the registry so you need to keep it clean to avoid disk cluttering. The hard disk clutters because the registry saves all the activities that you perform in your system. It saves junk files, internet history, invalid entries, and other unnecessary files. This occupies a lot of your disk space thus resulting in disk cluttering and faulty memory hardware issues triggering the Bad_Pool_Header. Ignoring the Bad_Pool_Header error is not wise. It is advisable to repair the Bad_Pool_Header right away as it can lead to serious threats like system failure and data loss.

Further Information and Manual Repair

The easiest, time and money-saving way to resolve the Bad_Pool_Header error on your system is to install Restoro. This is a high and multi-functional repair tool that features a powerful inbuilt registry cleaner, anti-virus, and a system optimizer. This tool is the one-stop solution for all your PC-related errors including the Bad_Pool_Header blue screen of death error. Whether it’s a driver issue, faulty memory, or cluttered disk, all the causes triggering the Bad_Pool_Header error code fall under the registry which is why it is recommended to install Restoro. Its innovative and powerful registry cleaner scans detect and repair all the errors related to the registry in one go including the Bad_Pool_Header errors. With this helper, you can easily remove all the unnecessary files cluttering your hard disk and damaging your registry. It wipes out the clutter in seconds and frees up disk space.

Why Should You Clean The Registry?

Sometimes the registry also gets cluttered by malicious software like viruses, spyware, and malware. These may also take up your disk space and prevent you to perform disk writing successfully and also corrupt the registry. The privacy error finding utility embedded in Restoro helps you scan for such malicious software on your system and removes them immediately. It lends the software anti-virus properties. When it comes to using repair tools, many users who are not technically sound often worried. They think it may be difficult to operate. If you think the same way, let us tell you that Restoro is very easy to use. It is integrated with a high-functional yet user-friendly interface complemented by simple navigation.

Restoro Special Features

This makes it simple for all levels of users to operate it regardless of whether they are technically adept or not. Restoro is compatible with all Windows versions. You can download it with ease and run it for scans on any Windows version you have installed on your system. To get started, all you have to do is:

• Click here to install Restoro.
• Once the installation is complete now run it to scan for errors like the Bad_Pool_Header
• After that simply click on the ‘repair’ button to resolve

When it comes to downloading and installing games in the Windows operating system, Steam is one of the well-known sources. You can find many big titles in Streams such as PUBG, Heaven Vaults, and a whole lot more. It is undeniably a great source of getting games in the Windows operating systems. However, just like other software, Steam is not immune to errors as you could encounter errors while using it. This isn’t caused by a bad code but also due to reliance on various factors in both respects to the software and hardware. One of these errors is the Application Load Error 5:0000065434. This kind of error can appear when you launch numerous game titles on your Windows 10 computer like Skyrim, Oblivion, Bully, Morrowind, Vortex, and many more. To fix this application error in Steam, you can try to copy the Steam executable file or use the Command Prompt. You could also try to verify the integrity of the game files feature or delete any conflicting files on your computer.

Option 1 – Try copying the Steam executable file

The first thing you can do to fix the error is to copy the executable file of Steam.

• First, right-click on the desktop shortcut of steam located on your Desktop and click on the “Open file location” option.
• After that, copy the executable file for Steam and navigate to the folder of the library of the games which is usually located in SteamSteamAppsCommon
• Now paste the Steam executable file you just copied inside the folder of the game and see if it fixes the error or not.

Option 2 – Try to use the Command Prompt

• In the Start Search, type “command prompt” and right-click on Command Prompt from the search results and then select the “Run as administrator” option.
• After opening Command Prompt as administrator, execute the following command:

cd "C:Program Files (x86)Steamsteamappscommon" mklink "steam.exe" "C:Program Files (x86)Steamsteam.exe"

• The command you entered will create a link between the executable file of Steam to the operating system. Once you see a message that states, “Operation completed successfully”, restart your computer.

Option 3 – Try to use the “Verify integrity of the game files” feature

The next thing you can do to get rid of the error is to use the “Verify integrity of the game files” feature. How? Refer to these steps:

• Open Steam and right-click on the entry of the game where you encountered the error in the Library and then select Properties.
• After that, navigate to the LOCAL FILES tab and click the “VERIFY INTEGRITY OF GAME FILES” button.
• Wait for the process to be completed and see if the feature has helped in fixing the error or not.

Option 4 – Try to delete any conflicting files

The error might be caused by some conflicting files on your computer which is why you have to delete them. To do that, follow these steps:

• Open the Documents folder and look for the folder created by the game that’s throwing the error. For instance, it could be stored in the “My Games” folder.
• Next, delete the folder and then try to launch the game again and see if the error is now fixed.

Error Code 0x80070422 - What is it?

Error Code 0x80070422 can be found on many versions of the Windows operating system including Windows 7, Windows 8, and 8.1, and Windows 10. The reason for its occurrence may vary, however, depending on the version of the operating system that you use.

In the case of error code 0x80070422 in Windows 8, it often occurs when users attempt to update their firewall or download apps from the Windows store. When this error occurs the user is unable to complete the updates and will need to apply different solutions to correct the issue.

Solution

Error Causes

Whenever error code 0x80070422 is encountered on Windows 8 or 8.1, it might be a result of various factors. These error codes include:

• Registry errors – This occurs when new programs are installed over old ones
• Malicious software such as adware, spyware, and or viruses

Further Information and Manual Repair

You do not need to be a Windows expert to attempt to solve errors like the 0x80070422 Windows 8 error code. Simply try the solutions below. If however, you feel you need a professional’s help, contact a certified Windows technician.

• Check for any viruses or malicious software

Viruses and other malicious software are often the cause of various issues within the PC. For this reason, be sure to check your machine for a possible virus infestation. If you are unable to use your anti-virus software or if none is present you might need to download an automated tool that offers overall repair and other solutions.

• Disable third-party security apps

Another step you can take is to disable third-party security apps. When these apps are downloaded onto your device, it can lead to the disabling of your Firewall and the inability of your device to download other apps. If this is the source of the 0x80070422 error code on your machine, the issue will be resolved after you disable the third-party apps and reboot your computer.

• Disable Firewall

If error code 0x80070422 in Windows 8 or 8.1 occurred while you attempted to update Windows firewall, one of the best solutions you can try is to disable the firewall. Note however that disabling your firewall should be temporary as it protects your computer from worms as well as hackers that might infect or compromise your PC. Access the firewall by swiping right on the screen then searching for “firewall”. Click “Windows firewall” then select “Turn off Windows firewall”.

• Performs a clean boot

Another option is for you to perform a clean boot. This simply refers to a reboot in Windows where only a minimum set of drivers and programs are used. A clean boot can help resolve issues related to software conflict which can occur when Windows users install programs or updates or simply run a program. Note that you must log on to the computer as an administrator. Otherwise, you will not be able to perform the clean boot.

• Clean registry

The source of many errors related to Windows can lie within the registry. This is because the registry is involved in every aspect of a Windows computer’s operation. If there is an issue in the files of the registry or if it has been hacked, your computer will not function. For this reason, begin by cleaning the registry regularly. To clean our registry, use a powerful tool that is both reputable and user-friendly. Research your option before you make a selection as choosing the wrong tool could lead to even more errors or computer malfunctions.

• Set Windows Update to Automatic

Another important method to solve issues related to error code 0x80070422 in Windows 8 or 8.1 is your Windows Update service. Though you may have never noticed this feature before now, the Windows Update services allow PC owners to access updates to their operating system automatically. This leads to a properly functioning PC as your machine will always have the latest features and tools available. However, if the setting is not correct, your computer may end up experiencing error code 0x80070422. Check if this is the source of your problems by verifying if your Windows Update settings are automatic. Once the settings are on automatic, reboot your machine to ensure your computer responds to the changes.

• Download an Automate Tool

Always be prepared for the possibility of other errors. You can do this by downloading powerful software. This enables users to regularly check for issues that may cause errors on their Windows device.

Error Code 0x8024002e - What is it?

Windows 10 error code 0x8024002e is related to the Windows update service. When you see the error code displayed on your screen, it means that the Windows update service has been blocked or not working. As a result of this error code, your computer might lag and the system may freeze while performing normal operations. The error may read as follows:

“There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information this may help: (0x8024002e)”.

Common symptoms include:

• Slow computer performance
• System freezes while performing normal operations or freezes while multitasking
• BSOD error is showing
• Some unwanted files get opened automatically
• Updating is not possible

Solution

Error Causes

This error code appears because of the following reasons:

• Incomplete installation of the Windows operating system
• Incorrect registry entry
• Corrupt or damaged system files
• The computer has come under a virus attack
• Miscommunication between the computer and the Windows Automatic Update service

The decline in RAM or outdated Hard Disk Drive

Further Information and Manual Repair

Method 1:

• Remove any external media connected to the computer
• Crash reboot your PC 2 to 3 times.
• Now check if you are still having the problem.

If the problem still persists, try the following methods if you are able to boot to the desktop and check for the problem.

Method 2:

Changing Windows Update property to automatic: You might see this error if your Windows update property is set to manual. Follow the steps below to change it to automatic. Open Task Manager.

1. Click on the Services tab. Find “Open Services” at the bottom of the window.
2. A new window will pop up. Scroll down and find “Windows Update” from the list. Double click on the Windows Update. It will open its properties.
3. Select Automatic for ‘Startup Type.’ Click Apply, Start, and OK.

Now, try the Windows Update and check if you are still getting the error message. If the problem isn’t resolved, reboot your PC for the changes to take effect and then try again.

Method 3:

Disable Antivirus program: If you have any antivirus installed on your PC, you might need to disable it first and see if that helps. Although, most of the antivirus makers have made changes to work smoothly with Windows 10, it is a new Operating System and some antivirus may cause conflict. Disable the antivirus and check for updates to see if it is preventing you from updating your system and displaying the error code 0x8024002e.

Method 4:

Run inbuilt Windows update troubleshooter. Follow the steps given below:

1. Press Windows + W keys on your keyboard to enable the search option.
2. In the Search box type Troubleshooting.
3. Click on View all
4. Click on Windows update and follow the prompts to run the troubleshooter.

If the issue persists, try Method 5

Method 5:

Run the System File Checker tool (sfc.exe):

1. Open Command prompt.
2. Type sfc /scannow and hit Enter.
3. The sfc /scannow will scan all protected system files and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%System32dllcache. The %WinDir% has the Windows Operating System folder. For example, C:\Windows.

Do not close the Command prompt window until the verification is 100% complete. The command prompt will show the scan results when it is done. After it is done, you may receive one of the following messages:

“Windows Resource Protection did not find any integrity violations.” This means you do not have any missing or damaged system files.

OR you may receive a message saying:

“Windows Resource Protection could not perform the requested operation.”

To resolve this problem, run the System File Checker in safe mode and make sure that the PendingDeletes and PendingRenames folders exist under %WinDir%WinSxSTemp.

OR you may also receive a message saying, “Windows Resource Protection found corrupt files and successfully repaired them. Details are included in the CBS.Log%WinDir%LogsCBSCBS.log.” OR you may receive a message saying, “Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log%WinDir%LogsCBSCBS.log.”

What is Error Code 100?

Error Code 100?? Whenever a Setup error contains error codes in the message, this indicates what the setup was operating on, let’s say copying files. The text in the error message will determine whether that it is fatal or not. An error code 100 is a system error that is displayed as ‘ERROR_TOO_MANY_SEMAPHORES’ or as a value 0x64. This error means that the system ‘cannot create another system semaphore.’ A semaphore is used in controlling access to parallel programming or a multi-user platform through multiple processes. This error can prevent certain features of your Windows to perform properly, like trying to get a print, copying files, deleting files, or any other routine computer activities.

Solution

Error Causes

Error code 100 can affect a wide range of activities that you normally perform on your PC. This error can occur for a number of reasons, of which some of the common ones include:

• When the Microsoft SQL Server fails to start the service
• When the account used for starting AOS does not match the database in SQL Server
• When the AOS licenses have exceeded their limit
• When the SQL Server database is incorrectly case sensitive

Though these are the common causes for error code 100, there can be other ways through which this error can occur. To find out the specific cause for error code 100, follow these steps:

• Go to Start and select All Programs. Go to Administrative Tools and click Even Viewer
• Click Application in Even Viewer
• Locate the error message in the right pane by scrolling down
• Click on the error message and see if the message applies to the error code.

Further Information and Manual Repair

In order to manually repair this error, you will have to work with your Network Administrator as they will have security privileges to take the steps. However, there are more than one ways to resolve this issue, for instance:

1. Starting SQL Server Service
   • A likely cause of an error code 100 can be that your SQL Server service is not started. To activate it, follow these steps:
   • Got to Start and Click on All Programs, go to Administrative Tools and click on Services
   • Find SQL/MSSQLServer service
   • Right Click on it and click Start to activate the service
2. Network Resolve

If you are connected to a network, then you can work with your network administrator to fix error code 100. Follow these steps to resolve this error:

• Got to Start and then Run. Type dcomcnfg and press Enter
• Locate Default Security and click it
• Find Default Access Permissions and click Edit Default
• You should locate System and Interactive, listed in the Allow Access. If they’re not listing, you can add them by clicking Add
• Find the local computer in the list and click on Allow Access
• Click Ok on the following three steps
• Log off the computer and log in again.

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.