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Difficulty: EasyMicrosoft Command-Line Tools

A technician suspects that corrupted protected Windows system files are causing system instability on a desktop computer. Which command-line utility should the technician run from an elevated Command Prompt to scan all protected system files and immediately replace corrupted files with cached copies?

  1. sfc /scannowAnswer
  2. B
    chkdsk /r
  3. C
    fsck
  4. D
    eventvwr.msc

Answer

sfc /scannow
The option specifying 'sfc /scannow' is correct because the System File Checker (SFC) utility scans protected Windows system files for corruption and replaces damaged files with clean copies from the Windows component cache.

Step-by-Step Solution

1
Identify the primary requirement
The goal is to inspect and repair corrupted Windows system files.
System file corruption requires a dedicated command-line verification and integrity repair tool.
2
Select the correct command-line utility
Choose System File Checker with the automatic scan and repair flag.
Running 'sfc /scannow' initiates an immediate scan of protected OS files and restores corrupted files from %WinDir%\System32\dllcache.

Key Concept

Windows System File Checker (SFC)
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Topics

Microsoft Command-Line Tools

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