Fix Corrupted Windows System Files with DISM

If your PC is suddenly crashing, throwing random update errors, or showing blue screens, you likely have corrupted system files. Instead of reinstalling Windows, you can use the built-in DISM tool to scan and repair those damaged files automatically.

Why this happens

Windows system files often get damaged during interrupted updates, power flickers, or driver conflicts. DISM downloads fresh, healthy copies of these files from Windows Update servers to replace the broken ones.

Steps

1. 01
   Press the Windows key, type CMD, right-click 'Command Prompt', and select 'Run as administrator'.
2. 02
   Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
3. 03
   Wait for the process to reach 100 percent, which typically takes 5 to 20 minutes.
4. 04
   Restart your computer once the 'restore operation completed successfully' message appears.