Issue Description
Corrupted Windows system files can cause crashes, update failures, and slow performance.
Common Causes
- Improper shutdowns
- Malware infections
- Failed Windows updates
Step-by-Step Solution
Step 1: Open Command Prompt as Administrator
- Press Start → type cmd
- Right-click Command Prompt → Run as administrator
Step 2: Run System File Checker
- Type:
- sfc /scannow
- Press Enter
- Wait until 100% completes
✔ If errors are fixed, restart and test
Step 3: Run DISM Repair
- In the same window, run:
- DISM /Online /Cleanup-Image /RestoreHealth
- Wait for completion
- Restart the PC
Step 4: Re-run SFC
- Run sfc /scannow again to confirm repair
Explore Further
- Run scans in Safe Mode
- Check disk errors using chkdsk
Prevention & Best Practices
Avoid forced shutdowns and keep Windows updated.