Start menu and search bar doesn't work anymore
Please try the following methods below.
**Restart Windows Explorer
Press Ctrl + Shift + Esc to open Task Manager.
Select the Processes tab.
Scroll down and look for Windows Explorer
Right click then select Restart.
**Please try to run SFC and DISM to check for any system errors and corrupted files.
https://support.microsoft.com/en-us/help/402652...
After that, restart your computer
Note: You can open command prompt by doing this,
Press Ctrl+Shift+Esc to open Task Manager then click File
Select "Run new task" then type: cmd
Make sure to put a check mark on the "Create this task with administrative privileges" box
Continue with the commands within the link above.
**Repair all Windows apps via PowerShell
Press Ctrl+Shift+Esc to open Task Manager then click File
Select "Run new task" then type: powershell
Make sure to put a check mark on the "Create this task with administrative privileges" box
Copy and paste the command below one at a time then press Enter. Please ignore the red errors and let the process complete.
Get-AppxPackage Microsoft.Windows.ShellExperienceHost | foreach {Add-AppxPackage -register "$($_. InstallLocation)\appxmanifest.xml" -DisableDevelopmentMode}
Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_. InstallLocation)\AppXManifest.xml"}
Restart your computer
If the issue still persists, please try performing a System Restore at an earlier date where everything is still working.
Press Windows key+R to open Run then type: rstrui.exe
Press Enter. This will open System Restore
Click the Next button.
Select the restore point at an earlier date where everything is still working.
Click Next then Finish