error code: 0x803F8001 when opening no mans sky

im in the united kingdom and it has always been set to here

Please go to Settings > System > About. What is the Windows Version you see under Windows Specifications?

I see. Are you able to launch other games without experiencing the same issue??

Please try the steps one at a time to resolve the issue.

Solution 1: Repair the Gaming Services app.

Please go to Settings > Apps > Apps Features. Select Gaming Services, then click Advanced options. Click the repair button, try launching the game again using the Xbox app and see if it works.

Solution 2: Uninstall and reinstall the Gaming Services App

Select the Search icon on the taskbar, type powershell, right-click on Windows PowerShell, and then select Run as administrator.

In Windows PowerShell, type the following command and press Enter:

get-appxpackage Microsoft.GamingServices | remove-AppxPackage -allusers

In the same window, type the following command and press Enter:

start ms-windows-store://pdp/?productid=9MWPM2CQNLHN

Install the app on that page and select Yes when you receive the User Account Control (UAC) prompt.

Restart your device and try to install the game again.

Hi, James. My name is Ron, I'm an independent advisor. I will be more than happy to help you.

Please try the steps below one at a time to sort out the issue.

Solution 1: Make sure that your device is set to a region where the game is available.

Select Start > Settings > Time & Language > Language & Region.

Under Country or region, select your new region.

Solution 2: Please go to Settings > Accounts > Email & Accounts. Is there a duplicate account listed under "Account used by other apps?" If there is a duplicate account, remove the duplicate account there. Try launching the game again after that and see if it works.