How to Fix Windows 10 Error Code 0x80072F8F

Despite popular belief, there are a lot of users running Linux OS. Linux offers great security and working environment and 96.3% of the world's top 1 million servers run on Linux. 90% of all cloud infrastructure operates on Linux and practically all the best cloud hosts use it. But gaming on Linux is limited, enter Steam proton a Valve’s gaming solution.

What is Steam proton?

Proton is a WINE fork with some extra capabilities, to play games and run applications not native and not made to run natively under Linux OS. It is supposed to bridge the Gaming issues for PC users and let them more freedom in choosing an operating system to game on.

Find out if your game supports Proton

Although there are a lot of titles that nowadays run natively on Linux some will still need proton in order to run at all and sadly some of them will not be able to run on Linux even via proton but seeing how Valve is busy and it is trying to push its ideas and technology slowly this gap is closing. In order to see how the game you want to play performs and behaves on Linux and proton environment visit https://www.protondb.com/ and find out. As soon as the site loads you will be greeted with statistics and a search option to find out the status of the desired game with one of the given statuses: Borked, Bronze, Silver, Gold, Platinum, and Native. As you probably guessed native means that the game will work on Linux out of the box and borked will probably not work at all. Platinum and gold status means that game will run on proton without any input or tweaks from the user while silver and bronze means that it will work but might need some tweaks in order to make it work.

How to get Steam proton?

In order to run games under proton inside Linux, you will need firstly a Steam client which luckily works naturally on Linux. Unlocking/activating Steam Proton on your Linux-based system is easy. Just head over to Steam > Settings > Steam Play and toggle the option “Enable Steam Play for Supported Titles”. Valve has tested and fixed some Steam titles and you will now be able to play those titles. However, if you wish to go even further beyond, and play titles that even Valve has not tested, toggle the option “Enable Steam Play for all titles”.

Conclusion

Even we are not there yet, native gaming on Linux is gaining a foothold each day. Will Steam’s OS with proton technology be one that will turn the tide from Windows or some other tech we cannot tell but one thing is for sure, more choices mean better products so I am hopeful for a bright future.

As you know, Microsoft is consistent in pushing updates to its supported versions of the Windows operating systems in order to make it better and defend it from different kinds of vulnerabilities. And pushing billions of active Windows computers every now and then is really not an easy thing to do since it calls for a complex Windows Update delivery module. These complexities often give rise to various errors like the Windows Update error code 0x80004005. When you encounter this kind of Windows Update error, you will see the following error message on your screen:

“There were problems installing some 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 0x80004005.”

This kind of Windows Update error occurs due to an issue while either installing or downloading an update. There are several ways you can fix the problem. You can try to replace the dpcdll.dll file, reset the Windows Update-related services, run the Windows Update troubleshooter or manually install the Windows Updates. For more details, check out the options given below.

Option 1 – Try to replace the DLL file with a trusted source

The first thing you can do is to replace the dpcdll.dll file with a trusted source.

• First, you need to get the new dpcdll.dll file from another computer with preferably the same file version number as your computer.
• After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
  • For x86: This PC > C:/Windows/System32
  • For x64: This PC > C:/Windows/SysWOW64
• Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 dpcdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 2 – Try to reset the Windows Update components

If by any chance that the third option didn’t work, you can also try resetting the Windows Update components as it could also help you resolve the Windows Update error. How? Refer to the following steps:

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

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

• After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below and don’t forget to hit Enter after you type one command after the other.
  • ren C:WindowsSoftwareDistribution SoftwareDistribution.old
  • ren C:WindowsSystem32catroot2 Catroot2.old
• Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
  • net start wuauserv
  • net start cryptsvc
  • net start bits
  • net start msiserver
• Close Command Prompt and reboot your PC.

Option 3 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update error 0x80004005. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 4 – Try downloading and installing the Windows Updates manually

Windows Update Error 0x80004005 might be due to a Windows Update that has failed. So if it is not a feature update and only a cumulative update, you can download the Windows Update and install it manually. But first, you need to find out which update has failed, and to do so, refer to the following steps:

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

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

You might have experienced a situation where your Windows computer was interrupted due to some battery issues or power failure. It could be that the upgrade process was interrupted because you’ve signed out of your computer or you restarted it by accident. In this case, you will most likely get a Windows Update or Upgrade error 0x80200056. If you are getting this error, read on as this post will guide you in fixing it. This kind of error pops up when the upgrade process was interrupted and could be caused by anything but the baseline here is that your computer was restarted accidentally or someone could have signed out your PC. To resolve the problem, here are some fixes you ought to try:

Option 1 – Try updating or upgrading your computer again

This is the basic thing to do since the process was suddenly interrupted. Just log in to your account and restart the Windows Update or Upgrade process but make sure that your internet connection is stable and that you don’t touch anything so as not to interrupt the upgrade/update process again.

Option 2 – Check if your PC is plugged in or if the battery is full

It is always best to update your computer always when you’re really sure that the power won’t fail. If you’re using a desktop computer, make sure that everything is plugged in. And if you’re using a laptop when this error occurred, make sure that its battery is at 100% but it’s better if you just plug it into power just in case as there are times when the Windows update or upgrade gets stuck for too long like for hours so it will really help if your device is connected to power.

Option 3 – Try running the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter could also help you resolve the Windows Update errors as well as the error 0x80200056. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button.

Option 4 – Delete the contents in the SoftwareDistribution folder

The Software Distribution folder in the Windows operating system is a folder that can be found in the Windows directory and is used to store files temporarily which might be required to install the Windows Update on your PC. Thus, it is required by the Windows Update and maintained by WUAgent. A lot of users tried deleting the files in this folder to fix the problem and so far it has worked. Like them, you can try clearing the Windows Update cache by simply deleting the contents of the folder named “SoftwareDistribution” since Windows apparently can’t clear and re-download the update contents once they are corrupted. Thus, deleting the contents of this folder will make Windows download the contents again which will fix the problem. To do that, follow the steps below.

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net stop bits

• After entering these commands, it will stop the Windows Update Service and the Background Intelligent Transfer Service.
• Next, got to the C:\Windows\Software\Distribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
• Once all the contents in the Software Distribution folder are deleted, restart your PC and then go back to Command Prompt and input the following commands again.

net start wuauserv net start bits

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

Option 5 – Try running 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 that might be causing the error 0x80200056. 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 6 – Run the Chkdsk utility to repair hard disk errors

You can also run the Chkdsk utility to resolve the Windows Update error 0x80200056. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the Chkdsk utility comes in. The Chkdsk utility repairs hard drive errors that might be causing the problem.

• Open Command Prompt with admin privileges.
• After opening Command Prompt, execute the commands listed below, and don’t forget to hit Enter right after you type in each one of them and if you have installed Windows to some different directory, you must replace “C” with the name of the drive you’ve installed Windows with.
• chkdsk C: /r /x
• chkdsk C: /f

Option 7 – Run the DISM tool to repair the Windows Update client

The Windows update/upgrade error 0x80200056 might be caused by some issues in the Windows Update client so you need to run the DISM tool to repair it. Note that you have to use another computer or another Windows from a shared network to fix it.

What exactly is no audio device malfunction?

No audio device error is among the malfunctions that many Computer consumers run into. No sound or audio can be heard from the computer when the error occurs.

Solution

Error Causes

There are numerous elements that may be the basis of this malfunction. Corrupted or broken sound card drivers, incorrect Device Manager Options for example, or even incorrect BIOS configurations.

Further Information and Manual Repair

How could you recover the standard production of audio by your personal computer and solve this malfunction? Like a number of additional malfunctions, the method of the repair depends on its trigger. To properly solve this dilemma, you are required to run through an evaluation of the pc system so that you can pinpoint the cause. This is because there are numerous variables, which alone, or concurrently may trigger this dilemma. These measures will allow you to work out the no sound device error in your personal computer programs, identify the trigger and fix it. Follow the directions in step 1 if your computer has an onboard audio device installed in it and assess the BIOS settings. You can jump step 1 and move to step two if you utilize a separate sound card.

STEP #1 - Assess the BIOS options.

No sound device error can be caused by incorrect BIOS configurations in your Personal Computer. By fixing these settings if they are the cause of the malfunction, you can easily solve it. Make Sure you restart the pc and immediately access the BIOS options. By locating the Sound card, which is usually known as the AC97 Audio, you should subsequently open the Integrated Peripherals. As soon as you locate it, set it to Allow or Auto. Finally, you should access the On-Board Audio AC97 Control and set it to Allow or Auto as well. If it doesn't solve the situation, proceed to Step Two.

STEP #2 - Analyze the Device Manager

No sound device malfunction can be additionally caused by malfunctions with the Device Manager. To solve this issue, go to My Computer, right-click it, select properties, click on the Hardware tab, then click on Device Manager. At this windowpane, analyze the movie, audio, and game controllers. If you learn that there is a cross on any of the sub things, right-click it subsequently and set it to Enable. The sound card driver may have not been correctly installed or may be damaged if there is Exclamatory Mark or Question Mark on the device manager menu. This does not mean that the sound card driver is ok. It may have malfunctioned even though you do not locate anything unusual. This is because the Device Manager doesn't always recognize errors in audio hardware. After this, you can proceed to step 3.

STEP #3 - Upgrade or reinstall the Sound Card Driver.

About 80% of "no sound system discovered/installed" malfunctions come from broken and/ or out-of-date card drivers. The sound card will not be detected by the Windows Operating System, when the audio card driver is corrupted, damaged, or out-of-date and therefore no sound will be produced by your computer. If this is the cause of the no sound device malfunction, you should reinstall the Audio Card Driver on your computer. Still, you can utilize driver upgrade applications on the web that will help you upgrade out-of-date drivers.

If you got an error message saying, The INF file you selected does not support this method of installation while trying to install a driver using the “Install” option in the right-click context menu, read on as this post will guide you in fixing the problem. The INF file mentioned in the error message is a text file that’s divided into different types of formatted sections. Each one of the sections is designed for a particular purpose. For instance, one section is designed to copy files or to add entries to the registry. INF files are used to install drivers. However, if something is wrong, you might encounter this error while installing a driver on your Windows 10 computer. To resolve this problem, you can try to download the driver again from the official manufacturer website or check if the driver is compatible with your computer’s operating system architecture or you can also try installing the driver from the Device Manager. For more details, follow the given options below.

Option 1 – Try downloading the driver again from the official website of the manufacturer

Usually, you shouldn’t encounter this kind of issue no matter what installation method you used on your Windows 10 PC. However, there are times when the driver itself is corrupted for some reason which is why you are unable to complete the installation and receive an error message instead.

Option 2 – Try checking if the driver is compatible with the OS architecture

It is possible that you’re getting this error if you have a driver that is compatible with a 32-bit system and you are trying to install it on a 64-bit system and vice versa. Thus, you need to check if the driver you are trying to install is compatible with your operating system if you haven’t done it when you’ve downloaded the driver from the website of the manufacturer. To check the system architecture, in the Start Search, type “msinfo32” in the field and hit Enter to open the System Information window. From there, you should see all the information about your operating system. In addition, you can also search “system information” in the Cortana search box and look for the System Type entry and open it.

Option 3 – Try installing the driver from the Device Manager

If you have the driver files on your PC and you have to update a driver, refer to the steps given below to be guided on how to install the driver from the Device Manager.

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the driver you want to update, and then right-click on each one of them and select the Update Driver from the menu.
• After that, click on the “Browse my computer for driver software” option.
• Next, select the “Let me pick from a list of available drivers on my computer” option and then click the Next button.
• On the next screen, you should see the “Have Disk” option. Click on this option and then click on the Browse button to go to the location of the file. After that, you shouldn’t have any problem installing the INF file.

Option 4 – Try running the System File Checker Scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the “The INF file you selected does not support this method of installation” error. 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. 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.

 Now restart your computer.

If you are typing inside the Search bar, Cortana, Taskbar, Windows 10 apps, etc., and then everything seems invisible then read on as this post will guide you in fixing this issue. At first, you might think that something is wrong with your keyboard but it really has nothing to do with it. The problem actually lies with the apps from Microsoft Store. Thus, if you can’t type anything in any of the apps from Microsoft Store in Windows 10, refer to the options given below to fix them.

Option 1 – Ensure that ctfmon.exe is running

Ctfmon.exe is a Microsoft process in Windows 10 that controls the Alternative User Input as well as the Office Language bar. In other words, it enables end-users to control the computer using on-screen keyboard inputs, speech, and even pen for various languages. It would be better if you launch the program once by going to the C:/Windows/system32 folder. Doing so will ensure that whatever API is needed for the keyboard typing to work properly again. You also have to make sure that its startup status is not disabled. In addition, you can also try the following steps, alternatively.

• Open the Task Scheduler.
• Then go to Microsoft > Windows > TextServicesFramework.
• And on the MsCtfMonitor, right-click and enable the task.
• Now restart your computer.

This will ensure that all the text boxes will start to work again. And if the task MsCtfMonitor is missing from the list of tasks, you can import it with the XML file from basics.net. Then download and create a task to run it each time you log in to your PC.

Option 2 – Use the Windows Store Apps Troubleshooter

You might also try running the Windows Store Apps Troubleshooter as it can help in resolving issues with the Windows Store apps. This built-in tool can resolve most of the app-related problems. To use it, go to Settings > Update & Security > Troubleshooting > Windows Store Apps and from there, click the start the troubleshooter button. The Windows Store Apps Troubleshooter will scan the computer for any issues with the Windows store apps and will automatically fix them if it finds any.

Option 3 – Re-register all the Windows 10 UWP apps using PowerShell

• First, make sure to close all the running applications on your computer.
• Next, in the Start search, type in PowerShell and right click on the result, and select the “Run as administrator” option.
• After that, type the following commands to re-register the Windows 10 apps. Make sure to hit Enter on each line:
  • reg delete "HKCUSoftwareMicrosoftWindows NTCurrentVersionTileDataModelMigrationTileStore" /va /f
  • get-appxpackage -packageType bundle |% {add-appxpackage -register -disabledevelopmentmode ($_.installlocation + "appxmetadataappxbundlemanifest.xml")}
  • $bundlefamilies = (get-appxpackage -packagetype Bundle).packagefamilyname
  • get-appxpackage -packagetype main |? {-not ($bundlefamilies -contains $_.packagefamilyname)} |% {add-appxpackage -register -disabledevelopmentmode ($_.installlocation + "appxmanifest.xml")}

Option 4 – Try to run the DISM tool

You can also run the DISM Tool as it helps in repairing the Windows System Image as well as the Windows Component Store in Windows 10. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth” which could help in fixing the problem.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 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 PC.

Windows 11 has brought some new features and changed some of the existing ones. One of these changes includes quick switching of audio devices which will play audio. Audio switching can still be done under the taskbar, it is just a little different and one could say even hidden. Follow this quick guide and you will be switching from your headphones to speakers as an example in a matter of seconds.

1. Click on the speaker icon located in the far-right part of the taskbar.
2. After the quick settings menu appears click on the right arrow located right of the volume slider. If the arrow is not present, instead of click on the pencil icon, then on add, and finally select Volume from the list.
3. After clicking on the arrow icon, a list of all enabled audio devices on the system will replace the volume slider. Click on the desired audio device in order to make it active.
4. Click anywhere outside the quick setting menu to save changes and close it.

Note: in the Quick settings menu if you choose More Volume Settings it will bring you to System > Sound where you can access more sound input and output options.

What Is Sndvol32.exe Error?

Sndvol32.exe is actually an important part of the Windows operating system. Responsible for managing the sound-card volume and running programs properly, the problem occurs when error messages appear. The user will be unable to listen to music on the system. Usually, Windows XP users encounter the Sndvol32.exe error.

Solution

Error Causes

Sndvol32.exe error can be caused by any one or several of the reasons listed below.

• Accidental deletion of the DLL file from the system
• Damage to the DLL file due to spyware or virus infection
• Improper removal of software
• Unintentional overwriting on the DLL file by a mismatched version
• Obsolete hardware drivers
• Several obsolete/invalid registry entries
• Corrupt registry entries

Regardless of what triggers the Sndvol32.exe error, it is of utmost importance to take immediate measures to fix the problem and to keep it from occurring again.

Further Information and Manual Repair

If you are looking for ways to fix this error manually, the Windows functionality of System Restore will come into play in this particular scenario. In case the error is caused by a damaged or corrupt file, performing System Restore is an ideal choice as it will allow you to not only get a fresh copy of the operating system, it will be possible for you to remove the error at the same time as well. The procedure for performing System Restore is outlined below as follows.

• Click on the Start menu and type ‘System Restore’ in the search box.
• When the icon for ‘System Restore’ appears, click on it.
• Now type ‘Restore’ in the search box that appears on the start menu.
• The window for the System Restore center will now appear.
• Now you have two options. You can either opt for “Recommend Restore” which is the case where the system itself will choose a restore point for you or you can select “Choose a different restore point”. Users are advised to choose the latter option as it is more customizable.
• Users can now select from a list of restore points that have been created before. If you observe closely, you will realize that one of the restore points is prior to the occurrence of the Sndvol32.exe error.
• Click on the restore point. Once you have confirmed your selection, your system will restart and it will roll back to its previously selected restore point.

One recommendation is to perform the system restore in Windows Safe Mode. This is just to ensure that the System Restore is performed smoothly and any potential problems are kept at bay.

DLL files, also known as Dynamic Link Libraries are external parts of applications that run on Windows as well as other operating systems. Almost all applications are not complete in themselves and store code in different files. In this post, we will be discussing one DLL file called ntdll.dll. It is described as “NT Layer DLL” which means that it contains some Kernel functions that help in the normal functioning of the Windows operating system. It is created by Windows in the System32 folder when the OS gets installed. This file can serve different programs simultaneously by providing them with different Kernel functions which support the programs’ performance. However, if you encounter the ntdll.dll file error on your Windows 10 computer, read on as this post will guide you in fixing the problem.

Option 1 – Try to re-register the ntdll.dll file

You may have to re-register the ntdll.dll file using the regsvr32.exe before you can successfully install the program and fix ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and un-register the OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.

• Open Command Prompt as admin from the WinX menu.
• Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
  • exe /u ntdll.dll
  • exe ntdll.dll
• You should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

Option 2 – Disable problematic Internet Explorer add-ons

There are instances when some add-ons in the Internet Explorer browser can cause the ntdll.dll file crash error. Thus, you need to disable some add-ons in Internet Explorer and then check if it fixes the problem.

Option 3 – Try running the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the ntdll.dll file crash error. To repair these corrupted system files, you can run the DISM commands:

• Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
• After that, input each one of the commands listed below sequentially to execute them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • Dism /Online /Cleanup-Image /RestoreHealth

• Once you’ve executed the commands given above, restart your computer and check if the DCOM error is now fixed.

Option 4 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job.

Option 5 – Try to replace the DLL file with a trusted source

• First, you need to get the new DLL file from another computer with preferably the same file version number.
• After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
  • x86: This PC > C:WindowsSystem32
  • x64: This PC > C:WindowsSysWOW64
• Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 ntdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 6 – Try scanning your computer using Windows Defender

The ntdll.dll file crash error might also be infected with malware or virus and to eliminate it, you have to scan your computer using security programs like Windows Defender.

• Tap the Win + I keys to open Update & Security.
• Then click on the Windows Security option and open Windows Defender Security Center.
• Next, click on Virus & threat protection > Run a new advanced scan.
• Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.