Some problems can be fixed by signing out of your account and then signing back in. Press Ctrl+Alt+Delete and select Sign out. Once you’ve signed out, sign back in to your account.
3. Fix corrupted files
If the Search bar still works, search for powershell. Then right-click Windows PowerShell in the search results and select Run as administrator.
But if the search bar doesn’t work either, press Winkey-R, type powershell, and press Enter. Right-click the PowerShell icon on the taskbar and select Pin to taskbar. Close the PowerShell program. Hold down Shift and Cntrl while you right-click the PowerShell icon again. Select Run as administrator.
Once you’re in the Powershell command-line environment, type the command sfc /scannow and press Enter. Then wait. It can take quite a while.
Eventually, the program will tell you either that it found no corrupt Windows files, it found and fixed them, or it found some but couldn’t fix them. If you get the later response, try the command
dism /online /cleanup-image /restorehealth
This should (hopefully) download replacement files to fix the start menu.
4. Log a ticket
If you are still having problems opening the Windows 10 start menu, please log a Netech support ticket. We will get back to you as soon as possible with a solution.