CompTIA A+ Core 2 (220-1202)Software TroubleshootingHard
A technician runs sfc /scannow on a Windows 10 PC and receives the message: 'Windows Resource Protection found corrupt files but was unable to fix some of them.' Which command should the technician run NEXT before retrying sfc /scannow?
- Achkdsk /f /r
- Bbootrec /fixmbr
- Cdism /online /cleanup-image /restorehealth
- DSystem Restore to a previous restore point
Show answer & explanationAnswer & explanation
Correct answer: C. dism /online /cleanup-image /restorehealth
When sfc /scannow cannot repair files because its local component store is also corrupted, DISM /Online /Cleanup-Image /RestoreHealth repairs the Windows image using Windows Update or installation media as a source, replenishing the store sfc relies on. After running DISM, sfc /scannow should be re-run to complete the repair.
Why the other options are wrong
- A. chkdsk addresses disk/file system issues, not corrupted OS component stores.
- B. bootrec /fixmbr repairs the master boot record, unrelated to file corruption repair.
- D. System Restore reverts system state but does not specifically resolve the component store issue and may not be desired.
DISM RestoreHealth
A Windows command that repairs the Windows image/component store, often used when sfc /scannow cannot fix corrupted files on its own.
- Full command: DISM /Online /Cleanup-Image /RestoreHealth
- Uses Windows Update or installation media as a repair source
- Should be followed by re-running sfc /scannow
Memory trick: DISM = 'Deep Image Store Mender' when sfc alone fails