Critical Error Your Start Menu Isn T Working. A critical error refers to the error causing a program to abort, which may "Critical Error. Like many people, I have been having issues with the "Critical Error - Your Start menu isn't working.
When you face such an error, then simple sign out from user account and boot into safe mode. Usually, this indicates that there is a hung unfinished process. Try one of our solutions to fix it now.
It happens when some files become corrupted.
I had already tried running all those AppX-related PowerShell cmdlets to no avail.
Using PowerShell to reregister the Start menu app does resolve some prompts for people. Right click the start choose Command Prompt. These errors clearly indicates that Start Menu or Cortana has lost their functionality - but it may also possible that some other feature integrated with them is not working. "Critical Error - Your Start menu isn't working.