Hi, awesomedonut278
Welcome to Microsoft Community.
We understand that you will encounter error code 0x8004E103 and file system error-2147163901 when running or installing games in Microsoft Store. These two errors indicate that your system components are damaged. From your description, you have performed the repair installation of Windows, but you still can't solve the problem. How did you perform the repair installation?Generally speaking, this problem you encounter is related to the damage of system components, so you can fix this problem directly through repair installation or in-place upgrade, so I suggest you try to solve this problem through the in-place upgrade steps we provide:Visit the following site and click "Download Tool Now" (note that it is not "Update Now") to download Media Creation Tool.-Download Windows 11 (microsoft.com) to run MCT tool, create ISO image and run it.-When the ISO file is downloaded, double-click it to open it and run setup.exe.-Select "Not Now" on the "Get Updates, Drivers and Optional Features" page.-Next, confirm your files and applications. Settings are reserved. It will also show you the version of Windows it wants to install.If you need to enter the key, it means that the ISO you downloaded does not match your current system version.-On the Select Content to Keep page, select Keep Files and Applications.-Click Install to start nondestructive repair.Disclaimer: Let’s try performing an in-place install or in-place upgrade which will refresh your Windows files and operating system without removing files or applications. That being said, we always recommend that if you have important data, you should back it up before making large system changes. If you want to back up your data first, please do so. Once you are done backing up, you can follow the steps in the following guides:How to run In-place upgrade in Windows 11 - Microsoft CommunityIn addition, you can also try to enter the WinRE repair system:-Start your PC as if Windows were trying to load (rotating point), and press and hold the power button for 5-10 seconds to perform a hard shutdown.Do this twice.-On the third boot, Windows will boot into the recovery environment, from which you can access system repair, safe mode, command prompt, etc.-click "Advanced Options".-Go to Troubleshooting-Advanced Options-Start Repair-See if Windows startup can repair itself.If there is any progress, please continue to contact us.
Best Regards
Nicholas.Z - MSFT | Microsoft Community Support Specialist