DISM connects to Windows Update to download healthy copies of corrupted files. If you lack an internet connection, you can point it to your Windows installation media. After DISM completes, run sfc /scannow once more to finish the job. SFC only protects Windows system files, not your personal documents, photos, or applications. For those, you need a different approach. The Check Disk (CHKDSK) utility scans the physical surface of your hard drive or SSD for bad sectors—tiny, unreadable areas of storage that can cause file corruption. To run CHKDSK, open an elevated Command Prompt and type:
DISM /Online /Cleanup-Image /RestoreHealth how to check for corrupted files on pc
If SFC cannot repair the files, the next step is the . DISM repairs the system image that SFC uses as its reference. Run this command in an elevated Command Prompt: DISM connects to Windows Update to download healthy