Here’s the error code, in case you need it: 0x803F8001

Please try these options one by one and check after each option.

1. If you are able to open MS Store, open MS Store > Click on your profile picture on top right and sign-out. Then sign-in again.

2. Windows Key+R > Type services.msc and press Enter > Locate Background Intelligence transfer and ensure it is set to Start and Automatic. Also do the same for Windows Update service as well

3. Run Windows Store Apps Troubleshooter
Windows Key+X > Click Settings > Click Update & security > Click Troubleshoot > Scroll down to the bottom > Click Windows Store Apps > Click Run the Troubleshooter

4. Reset Windows Store through Command Prompt
Type cmd in Windows Search box > Right click on Command Prompt > Run As Administrator > Type WSreset.exe and click Enter > Reboot your computer

5. Re-register All Store apps (You will get many Reds, ignore them)
Windows Key+X > Windows Powershell (Admin) > Copy the following from below and right click in Powershell to paste > Enter > Restart your computer

Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

6. Uninstall & Reinstall Store
Windows Key+X > Windows Powershell (Admin) > Copy the following from below and right click in Powershell to paste > Enter

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

Copy the following from below and right click in Powershell to paste > Enter > Reboot your computer

Get-AppxPackage -allusers *WindowsStore* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}
Source - https://answers.microsoft.com/thread/b8f36cad-9...

Ok i tried all of them and these are my results

1. Failed

2. Failed

3. Failed

4. Failed

After doing these 4 steps i uninstalled the game and now i cant install it back

FH4 is a very large game, hence we don't advise it to be uninstalled.

Anyway, what is the error now?

im ok with reinstalling it takes 2 hours which i am willing to wait, however now i even cant install the game....

This is the only solution that really works.

Error code 0x803F8001 on apps and games. Ask for level 2 or tier 2 support.

I would recommend that you should contact Microsoft Windows Gaming Support to see if there is a solution. Use below option to reach out to Microsoft Support. Here you get Live agent support not virtual agent support.

By Chat - https://partner.support.services.microsoft.com/...

By Phone - You can talk to support by picking up appropriate country
https://support.microsoft.com/en-us/help/13948/...

Do let me know if you require any further help on this. Will be glad to help you.