i need help
8 points
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Use Bitdefender or Kaspersky free anti-virus instead.
Open a terminal as administrator ( right click the terminal (cmd) and choose open as administrator ):
type sfc /scannow
sfc stand for sys file check so it should fix your problem. If not try :
DISM /Online /Cleanup-image /Restorehealth
If it fails, backup your stuff and do a fresh Reinstall.