1. Open your powershell as administrator on your pc.
2. First write this command and press enter:
- Powershell Command to Reinstall Microsoft Store
Get-AppxPackage -alluser WindowsStore | Remove-Appxpackage

3. Now to install again the Microsoft Store using the command:
Get-AppxPackage -AllUsers Microsoft.WindowsStore* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}