A few days ago I noticed that my Microsoft Store app got corrupted, I was unable to start the app, so after a few hours of searching on the web this is how I solved my problem.
1. Search for “powershell” in the Start Menu, right click and run as administrator.
2. In the Power Shell window run the following commands.
a.) Remove Microsoft Store
Get-AppxPackage *windowsstore* | Remove-AppxPackage
b.) Install Microsoft Store
Get-AppXPackage *windowsstore* -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
3. Remove the app data. Search for “apps” in the Start Menu and navigate to Apps & features. Select the Microsoft Store app, click on “Advanced options” and hit the “Reset” button.
4. Reset the app cache. Launch “Run” dialog box (Windows key + R), execute wsreset and wait.