Windows 11 Start button is not working

Immediate Fixes

• Restart Windows Explorer: Press Ctrl + Alt + Delete or Ctrl + Shift + Esc to open Task Manager. Locate “Windows Explorer” in the list, right-click it, and select Restart.
• Restart Your PC: A full system restart can resolve temporary glitches.
• Force Restart Graphics Driver: Press Windows Key + Ctrl + Shift + B to refresh the display driver, which can unfreeze the taskbar. 

Troubleshooting Steps

1. Run System File Checker (SFC):
   • Press Ctrl + Shift + Esc to open Task Manager.
   • Select File > Run new task.
   • Type cmd, check “Create this task with administrative privileges”, and click OK.
   • Type sfc /scannow and hit Enter.
2. Re-register the Start Menu (PowerShell):
   • Open Task Manager > File > Run new task.
   • Type powershell and click OK.
   • Paste the following command and press Enter:
     Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}.
3. Check for Windows Updates: Press Windows Key + I to open Settings (or use Task Manager to run ms-settings:), go to Windows Update, and install any pending updates.
4. Create a New User Account: If the profile is corrupted, creating a new user account can fix the issue.