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Question

Difficulty: EasyResolving System File Corruption and Driver Issues

A desktop technician receives a report that several core Windows system files were modified after an unexpected power outage. Assuming the local component store is fully intact, which command should the technician execute from an elevated command prompt to scan all protected system files and automatically replace corrupted versions?

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

Answer

Running the sfc /scannow command from an elevated command prompt.
Executing sfc /scannow initiates the System File Checker utility to inspect all protected system files and replace corrupted files with healthy copies stored in the Windows component store.

Step-by-Step Solution

1
Identify the primary objective
The goal is to scan and automatically replace damaged or corrupted protected system files on a live Windows machine.
System File Checker (SFC) is the built-in Windows administrative tool dedicated to verifying and replacing corrupted protected system binaries.
2
Select the proper command syntax for automatic repair
Executing sfc /scannow performs the full system scan and repairs damaged files.
The /scannow switch instructs SFC to repair files immediately using cached copies from the healthy component store.

Key Concept

System File Checker (SFC) utility execution
Estimated Time:45s
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Topics

Resolving System File Corruption and Driver Issues

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