Hi,
I'm Pedro A, Independent Advisor
Try this procedure:
1 - Access the link below and install the "App Installer"
https://www.microsoft.com/store/productID/9nblg...
2 - Click Start menu and search for Windows PowerShell, open with Admin privileges.
Copy and paste the following command by hitting enter after each one
(When a conformation message appears, type Y)
winget uninstall -e Microsoft.WindowsStore_8wekyb3d8bbwe
3 - Clear all of the Windows Temporary files
Open Settings by pressing the Windows Key + I.
Next search for "Delete temporary files".
Now click Temporary files.
Check all boxes except "Downloads" and click "Remove Files"
4 - access the folder through the path
C:\Users\Username\AppData\Local\Packages\Microsoft.WindowsStore_8wekyb3d8bbwe
(Change "username" by your username)
Locate the "Local Cache" folder and erase all content
5 - Then copy and paste the following command:
Get-AppXPackage *WindowsStore* -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
When finished, restart Windows