Hello there! I am Charity. I'm glad to help you today!
May I ask what are the steps that you have done so far? Let's also check for corrupted system files.
Click Start, then type cmd.
Right-click on "Command Prompt" and select "Run as administrator".
In the Command Prompt window, type:
sfc /scannow
Press Enter.
Wait for the scan to complete. It may take several minutes.
Follow any instructions shown after the scan finishes.
Next, open Command Prompt as an administrator again. In the Command Prompt window, type
DISM /Online /Cleanup-Image /RestoreHealth
and press Enter.
Kind Regards,
Charity
Please note that things might need more than one reply to completely resolve your issue, as it will completely depend on the complexity of the question and the amount of detail that you have provided me.