Fix error code 0x803f8001 in Windows 10 and 11

Most often, error code 0x803f8001 appears when downloading or updating an app from the Microsoft Store fails. This problem could be due to a simple update error or to a virus, which is why we recommend that you never postpone resolving this error. Learn from us how to do it, whether using the Windows Troubleshooter, a Microsoft Store repair, or a completely new installation.

When can error code 0x803f8001 appear?¶

In many cases, you receive error code 0x803f8001 when you attempt to download or update an app from the Microsoft Store. A message is then displayed, for example: “An error has occurred on our side. The corresponding error code is 0x803f8001, if you need it. » The error can come, among other things, from one of the following elements:

• Bad system files
• Incomplete update, or error during update
• Registry problem
• Spread of a virus

Generally, this error does not necessarily mean serious problems such as viruses. However, like error codes 0x803f8001 or 0x80070490, 0x80070643 and 0x80070005 can compromise the proper functioning of your operating system, we advise you to remedy it without delay. Discover the most common solutions with us.

Solutions to Fix Error 0x803f8001¶

The solutions given below can help you fix error code 0x803f8001:

Clear Microsoft Store cache¶

An overload of the Microsoft Store cache, which nevertheless corresponds to a simple problem, can, in itself, be the cause of this error. Follow the steps below to clear your cache:

1. Access the “Run” dialog box by pressing the keys simultaneously [Ctrl] + [R].
2. Then enter the “wsreset.exe” command, and validate your entry using the key [Entrée].
3. If Command Prompt and Microsoft Store both open, the cache has been cleared.
4. You can then restart the computer, open the Microsoft Store and start downloading the application in question again.

Reset Microsoft Store¶

You have cleared the cache, but that is not enough? You can always try to repair or reset Microsoft Store app :

• Windows 10 : Go to Windows Settings, then “Applications”, and select Microsoft Store from the list. Open the “Advanced Options”, then start by clicking the “Repair” button. If the error persists after the process is completed, this time select “Reset”, still in the advanced options of the application.
• Windows 11 : use the keyboard shortcut [Windows] + [I] to open Windows Settings. Go to “Applications”, then “Installed Applications”. Find the Microsoft Store app and expand the three dots on the right. Click “Advanced Options”. In the “Reset” section, first click the “Repair” button. If the error persists after the process is completed, try again using the “Reset” command.

Reinstall Microsoft Store¶

If you are unable to repair or reset the application, try this time to reinstall Microsoft Store. To do this, simply use Windows PowerShell with your administrator rights:

1. Windows 10 : Enter “PowerShell” in the search bar. Right-click on “Windows Powershell”, then select “Run as administrator”.
2. Windows 11 : In the taskbar, right-click the Windows icon, then click “Terminal (administrator)”.
3. Then enter the following command, and validate your entry using the key [Entrée] : “Get-AppXPackage WindowsStore -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode-Register “$($_.InstallLocation)\AppXManifest.xml”}”.
4. The Microsoft Store should now be reinstalled.
5. Finally, restart your computer and try downloading the desired application again.

Reinstall all Windows applications¶

If the problem is caused by other Windows applications, it is possible to reinstall all Windows applications already pre-installed.

1. Start by opening Windows PowerShell using your administrator rights.
2. Then enter the following command, and validate your entry using the key [Entrée] : “Get-AppXPackage -allusers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}”.
3. All Windows applications should now be reinstalled.
4. Finally, restart your computer and start downloading the application in question again.

Use Windows SFC and DISM tools¶

If the error is related to faulty system files in Windows, it is possible to try to repair them with tools already integrated into Windows, SFC (System File Checker“system file checker” in French) And SAY M (Deployment Image Servicing and Management“Management and maintenance of deployment images” in French).

1. Open Command Prompt using the keys [Ctrl] + [R]enter “cmd” and confirm your entry using the keys [Ctrl] + [Maj] + [Entrée].
2. Then enter the CMD command “sfc /scannow”, then use the key [Entrée] to validate.
3. Once this check is complete, restart your system.
4. If Windows does not find any damaged files, call the command prompt again and enter the commands below (validating them each time using the key [Entrée]):

DISM.exe /Online /Cleanup-image /Scanhealth
DISM.exe /Online /Cleanup-image /Checkhealth
DISM.exe /Online /Cleanup-image /Restorehealth

5. Now restart your device and make sure you can install the app in question.

If none of these solutions work, we advise you to carry out a thorough antivirus scan. Use reliable and up-to-date antivirus software, and make sure your system has not been infected with viruses that you did not detect.

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