Hi Felix Hu,
As a first step, I recommend running the DISM tool to repair the Windows image. Open PowerShell as administrator and run:
DISM /Online /Cleanup-Image /RestoreHealth
This often resolves deeper issues that sfc /scannow alone cannot fix.
If the problem persists, you can re-register the Start menu and Settings components by running the following command in PowerShell (admin):
Get-AppxPackage -AllUsers Microsoft.Windows.StartMenuExperienceHost | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppxManifest.xml"}
For the Settings app, you can similarly re-register with:
Get-AppxPackage -AllUsers Microsoft.Windows.immersivecontrolpanel | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppxManifest.xml"}
Additionally, please ensure that the latest cumulative updates for Windows 11 are installed, as Microsoft has released fixes for Start menu and Settings reliability in recent patches. If these steps don’t resolve the issue, creating a new local user profile can help determine if the problem is account-specific.
I hope these steps help restore full functionality to your taskbar and Settings app without requiring a reset. If you find this answer helpful, please consider clicking Accept Answer so others can benefit too.
Jason.