Fix: ‘Error Code: 0x803F800A’ in Microsoft Store on Windows 11

The Microsoft Store has undergone a complete overhaul in Windows 11 but these improvements, however, do not make the Microsoft Store error-free, as users still encounter problems now and then. Recently, several users reported that the Microsoft Store displays error code 0x803F800A which states ‘Error on our end’. This error is displayed when their attempt to install an application from the Microsoft Store fails. 

We had a look into the issue and discovered that it can be caused by a number of reasons including the following:

• Microsoft account glitch – this error is usually caused by inconsistency with the Microsoft account that you have linked to your Windows Store.
• Generic inconsistency – you might be experiencing the error at hand due to a generic inconsistency within the system, that can be repaired by simply running the Windows Store Troubleshooter.
• System file corruption – there is a chance that certain dependencies used by Windows Store have become corrupt, causing the issue at hand. If this scenario is applicable, you should try running SFC and DISM scans to identify and fix the corruption errors. 
• Corrupt Windows Store installation – it is possible that you are dealing with a corrupt Windows Store installation which might be caused by an outdated version of the program on Windows 11. In this case, you can reinstall Windows Store using Powershell. 

Now that you are aware of all the potential scenarios that could lead to the error code 0x803F800A, let us take a look at the various methods other affected users have used to repair this issue:

Sign-in into Microsoft Store Again

There have been instances where the issue at hand was primarily caused due to account synchronization. Several users managed to resolve the error code 0x803F800A by simply signing out of their Microsoft Store account and then signing back in. 

There is still no clear explanation behind this, but we recommend giving it a try by following the steps mentioned below:

1. Launch Microsoft Store and click on your user icon in the top-right corner of the window.
2. Select Sign out from the context menu.
   

   

   Sign out of your Microsoft Store

3. Having successfully signed out, restart your computer.
4. Upon reboot, relaunch Windows Store and click on the user icon in the top-right corner.
5. This time, select Sign in and enter your credentials. Now check if the issue is resolved.
   

   

   Sign back into your Microsoft Store

Repair Microsoft Store

As we mentioned earlier, corrupted temporary files or faulty dependencies can cause the error code 0x803F8001 in Microsoft Store. Here, repairing the entire suite is the most appropriate step to take.

Here is what you need to do:

1. Press Windows + I keys simultaneously on your keyboard to open Windows Settings.
2. In the Settings window, select Apps from the left panel and click on Apps & features in the right pane.
   

   

   Apps Settings

3. Now locate Microsoft Store in the next window and click on the three dots against it.
   
4. Select Advanced options from the context menu.
   

   

   Launch Advanced options for Microsoft Edge

5. In the newly launched window, hit the Repair button under the Reset section. 
   

   

   Repair Microsoft Store

Once the process completes, check if the error 0x803F800A is resolved. If not, then you can try resetting the Windows Store by following the steps mentioned below.

1. Return to the Advanced options window and this time, click on the Reset button.
2. At the confirmation prompt, click Reset once again to proceed.
3. Once the process is complete, restart your PC.

Run Windows Store Troubleshooter

Like Windows 10, Windows 11 also comes with a “Windows Store Apps” troubleshooter, which automatically identifies and fixes any issues that may prevent apps from being installed properly on the Windows Store.

In the case of a common Windows Store issue that Microsoft is aware of, you can assume that running the Windows Store Troubleshooter will resolve the 0x803F800A error code in no time. However, if the troubleshooter fails to resolve the issue, proceed with the next method below.

Run SFC and DISM Utility

In addition to the Windows Store Troubleshooter, several other utilities are included within the system for solving corruption issues. System File Checker (SFC) and Deployment Image Servicing and Management (DISM.exe) are two of these troubleshooting tools that scan the operating system for issues and then resolve the ones identified without much user input.

Here is how you can run SFC and DISM scans on your operating system:

1. Type cmd in the search bar and click on Run as administrator to launch Command Prompt with administrative privileges.
2. Inside the Command Prompt window, type the command mentioned below and hit Enter to execute it.
   

   sfc /scannow

   

   Performing SFC Scan

3. Once the command is executed, restart your PC.
4. Upon reboot, launch Command Prompt as an administrator again and this time, execute the following command.
   

   Dism /Online /Cleanup-Image /RestoreHealth

   

   Run DISM RestoreHealth

5. Finally, restart your PC and check if this resolves the 0x803F800A error.

Reinstall the Windows Store via Windows Terminal

Lastly, if none of the methods listed above work for you, try reinstalling the Microsoft Store, which will reregister that app. There is a chance that you still have the corrupted file dependencies even after you’ve reset the application. In this case, reinstalling is pretty much the only viable option.

Here is what you need to do:

1. Press Windows + R keys simultaneously on your keyboard to launch a Run dialog box.
2. In the text field of the dialog box, type wt and press the Ctrl + Shift + Enter keys together to launch Windows Terminal as an administrator. 
   

   

   Open up the Windows Terminal app

3. When prompted by the User Account Control, click Yes to grant admin access.
4. Inside Windows Terminal, type the command mentioned below and hit Enter to execute it.
   

   Get-AppxPackage -allusers *WindowsStore* | Remove-AppxPackage

   

   Uninstall Windows Store

5. Once the command is executed, restart your PC. Upon reboot, open Windows Terminal again with administrative privileges again.
6. This time, execute the following command to reinstall Windows Store.
   

   Get-AppxPackage -allusers *WindowsStore* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}
   

   

   Reinstall Windows Store

7. Finally, restart your PC again and check if the issue is resolved.

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