Error 0x803F8001 - cannot open any games on PC using Gamepass

In the Search box, type CMD

Right-click on Command Prompt and choose Run as administrator

In the command prompt, enter the following command:

PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"

Restart your PC and try again, please.

I'm Samy an independent advisor. Welcome to the Xbox community. How are you?

These steps can help you, give it a try.

Check for updates on Windows Update, update everything including optional/additional updates.

1. Logout from Xbox app and Microsoft Store app

2. Look for the Xbox app and Microsoft Store app in the Windows menu, right-click, click app settings and then click terminate, restore and reset. Do this with the games too.

3. Clear the store cache type ''wsreset'' in the Windows bar, run as admin, and wait for the screen to close and open the store automatically.

4. Open the Microsoft Store app, click on the 3 dots in the upper right corner>downloads updates>get updates and update everything.

5. Restart your PC, log in to both apps and see if that solves the problem.

Also, check that your PC's region is correct.

Done, twice. Same error:

"Back 4 Blood is currently not available in your account. Make sure you are signed in to the Microsoft Store and try again. Here's the error code, in case you need it: 0x803F8001"

(same error with any other installed game)

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Thanks! However, I have now done all of the above and am receiving the same error.

In this thread there is the fix:

Cannot download GamePass PC games through Xbox Beta App, with error 0x80070005