Hi,
This behavior (Start menu search not working and taskbar right-click not responding) is usually caused by temporary system corruption or Windows shell issues, and it can often be fixed without losing any data.
1: Repair system files using SFC and DISM
Run system repair tools to fix any corrupted Windows components:
After running it, restart your computer.
2: Restart Windows Explorer
Press Ctrl + Shift + Esc to open Task Manager
Go to the Details tab
Find explorer.exe, right-click it, and select End task
Click File > Run new task
Type explorer.exe and press Enter
3: Re-register Windows apps (fixes Start menu/search issues)
Press Ctrl + Shift + Esc
Click File > Run new task
Type powershell and check “Create this task with administrative privileges”
Run this command:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Get-AppxPackage Microsoft.Windows.ShellExperienceHost | foreach {AddAppxPackage -register "$($_.InstallLocation)\appxmanifest.xml" -DisableDevelopmentMode}
Please ignore any red errors during the process and let it complete, then restart your PC.
4. If that fails, the next step is to try System Recovery without deleting your files and apps.
Click the Start menu > Settings > System > Recovery.
Choose Reinstall Now under the section labeled 'Fix problems using Windows Update.'
Once completed, your system will restart. Please check afterward.