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Question

Difficulty: EasyResolving System File Corruption and Driver Issues

A Windows 11 workstation experiences application crashes following a sudden power failure. A technician suspects that protected operating system files may have been corrupted. Which command-line tool should the technician run to scan and repair corrupted Windows system files?

  1. sfc /scannowAnswer
  2. B
    chkdsk /r
  3. C
    dism /online /cleanup-image /restorehealth
  4. D
    devmgmt.msc

Answer

Execute the sfc /scannow command in an elevated Command Prompt.
Executing sfc /scannow scans all protected Windows system files and replaces corrupted files with clean copies from the local Windows system cache.

Step-by-Step Solution

1
Open an elevated Command Prompt with administrative privileges.
An administrative command-line interface is opened.
Administrative rights are required to inspect and overwrite protected operating system files.
2
Type sfc /scannow and press Enter.
The System File Checker utility scans all protected system files and replaces corrupted files with a cached copy located at %WinDir%\System32\dllcache.
The sfc utility with the /scannow switch is designed specifically to check system integrity and repair damaged Windows system files.

Key Concept

System File Checker (SFC)
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Topics

Resolving System File Corruption and Driver Issues

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