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Boot into Safe mode:
Press Win + I to open Settings.
Go to System > Troubleshoot > Other troubleshooters.
Find and run the Search and Indexing troubleshooter.
Additionally, run the Start Menu troubleshooter if available
Open Command Prompt as Administrator and run the following commands:
sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth
You may also create a New User Account.