If the Windows 10 Start menu is not working, this can manifest itself in several ways:
How do I fix the Start Menu not working issue in Windows 10?
The Windows 10 Start menu can stop working for several reasons, including an incomplete operating system update, an update bug, corrupted system files, or damaged user account files.
Restart your computer. Sometimes the easiest solution works. Turn off your computer, wait a few minutes, and then turn it back on. If you still have the same problem, try some of the suggestions below.
Check for Windows updates.
