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Difficulty: MediumResolving System File Corruption and Driver Issues

A remote Windows computer experiences recurring system errors following an interrupted update. When a field technician runs the System File Checker utility, the scan reports that corrupted system files were found but could not be repaired because the local side-by-side component store is damaged. The computer lacks internet access to download repair payload files from Windows Update, but a valid Windows installation media ISO is mounted at drive letter D:. Which command should be executed first to repair the component store so that system file replacement can complete successfully?

  1. dism /online /cleanup-image /restorehealth /source:D:\sources\install.wim /limitaccessAnswer
  2. B
    dism /online /cleanup-image /analyzecomponentstore /source:D:\
  3. C
    sfc /scannow /offbootdir=D:\ /offwindir=C:\Windows
  4. D
    sigverif /scan /source:D:\sources\install.wim

Answer

dism /online /cleanup-image /restorehealth /source:D:\sources\install.wim /limitaccess
The command starting with 'dism /online /cleanup-image /restorehealth' accompanied by '/source:D:\sources\install.wim' and '/limitaccess' is correct. DISM repairs the underlying Windows Component Store (WinSxS) repository. When network connectivity is absent, pointing the source flag to a local install.wim file and adding limitaccess instructs DISM to repair the local store directly from the provided ISO without reaching out to Windows Update.

Step-by-Step Solution

1
Identify the cause of System File Checker (SFC) repair failure
SFC fails to fix corrupted files because its source payload repository—the Windows Component Store (WinSxS)—is corrupted.
SFC relies on healthy files stored inside WinSxS to replace damaged operating system binaries.
2
Select Deployment Image Servicing and Management (DISM) to repair the WinSxS store
DISM is capable of servicing and repairing the Windows component store image.
Running DISM with /restorehealth restores the component store integrity.
3
Specify the offline repair source and restrict online access
Appended switches /source:D:\sources\install.wim /limitaccess force DISM to draw known-good replacement files from the local mounted ISO rather than querying unavailable online Windows Update servers.
The system has no internet connection, requiring a local source image to restore the component store.

Key Concept

Repairing the Windows Component Store with DISM using an offline image source
Estimated Time:1m 15s
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Topics

Resolving System File Corruption and Driver Issues

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