Okay, try this:
Open Settings by pressing Windows+I
go to System > scroll down > Recovery > Restart now > Restart.
Wait for some time.
Then click on Troubleshoot > Advanced Options > Startup Repair.
Let the repair finish.
If that didn't work, press Windows+R and type cmd.
Press Ctrl+Shift+Enter and click on Yes.
In the black window, type sfc /scannow.
Press enter.
Let the scan finish.
Then restart the PC.