When a contemporary application won't load (run) or doesn't care about your command to close, you may just need to re-register them in Windows to fix the problem.
Today we will show you how to re-register all modern ones applications that you have already installed on a user account in Windows 8 or Windows 10.
1. Open PowerShell. To do this press the 2 Win + R keys at the same time and in the new "Run" window that will appear type Powershell.exe and press the OK key.
This command will run the Windows Powershell, i.e. it will open a new dark blue window that looks like the Command Line window (Command Prompt).
If you want to know more about Windows Powershell click here. If you have not already installed it you can download from here.
The windowworld Powershell window
2. In PowerShell, copy and paste the following command, and press Enter. (See it below picture)
Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$ ($ _. InstallLocation) \ AppXManifest.xml"}
3. When finished, close it PowerShell, and try resubmitting the problematic modern app.
Good luck
