Windows 10 start menu critial error fix

A possible solution to the following error in Windows 10 when trying to use the start menu:

English Error:

Critical Error – Your Start menu isn't working. We'll try to fix it the next time you sign in.

German Error:

Schwerwiegender Fehler Ihr Startmenü funktioniert nicht. Wir beheben das Problem, sobald Sie sich neu anmelden. Jetzt abmelden.

Possible solution for Windows 10 start menu

1. Launch the Task manager
   
2. Open a new PowerShell window with administrative privileges
   
   
   
   
   
3. Paste the following line into the PowerShell window
   
   Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
   
   
   
   
   
4. Ignore the errors and wait until it is finished (a new line PS C:\Windows\system32 is shown)
5. Reboot Windows

 If that doesnt not help, try sfc /scannow or dism /online /cleanup-image /restorehealth or checkdisk or analyze the issue with procmon.