Question

Difficulty: MediumResolving System File Corruption and Driver Issues

A technician is troubleshooting a Windows 11 workstation that experiences random system instability following an improper system shutdown. The technician runs the System File Checker utility (`sfc /scannow`), but the command returns an error stating that corrupted files were found but could not be repaired because the local payload source is also damaged. Which command-line command should the technician execute next to repair the component store payload so that System File Checker can complete successfully?

  1. dism /online /cleanup-image /restorehealthAnswer
  2. B
    sfc /scanfile=C:\Windows\System32\drivers
  3. C
    chkdsk /r /f
  4. D
    sigverif /autostart

Answer

The command `dism /online /cleanup-image /restorehealth` should be executed to repair the corrupted Windows Component Store payload.
Executing `dism /online /cleanup-image /restorehealth` repairs the Windows Component Store (WinSxS) by retrieving known-good replacement files from Windows Update or specified installation media. Once the component store is healthy, running `sfc /scannow` can successfully replace corrupted system files.

Step-by-Step Solution

1
Identify the cause of SFC failure
SFC fails to repair corrupted files when its local reference payload stored in the Windows Component Store (WinSxS) is missing or corrupted.
SFC relies on a healthy Component Store image to replace damaged system files.
2
Execute the DISM repair command
Run `dism /online /cleanup-image /restorehealth` in an elevated command prompt to download clean replacement files for the Component Store.
DISM checks the integrity of the local image and repairs corrupted store components online via Windows Update.
3
Re-run System File Checker
Run `sfc /scannow` again after DISM successfully finishes restoring the image health.
Now that the local payload source is healthy, SFC can successfully copy undamaged files to replace corrupted system files.

Key Concept

Proper sequencing of DISM and SFC tools to resolve Windows system file corruption
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