A technician discovers a user's home computer has Windows Update disabled and suspects malware has replaced several Windows OS files. After completing a malware scan, which of the following command…

The correct answer is C. sfc. SFC (System File Checker) - run as 'sfc /scannow' - scans all protected Windows system files and replaces corrupted or missing ones with a cached clean copy. Because the malware may have replaced legitimate OS files, running SFC restores system integrity before re-enabling…

Hardware and network troubleshooting

Question

A technician discovers a user's home computer has Windows Update disabled and suspects malware has replaced several Windows OS files. After completing a malware scan, which of the following command line utilities would the technician MOST likely run before enabling Windows Update?

Options

Axcopy
Bchkdsk
Csfc
Dgpupdate

How the community answered

(48 responses)

A
2% (1)
B
4% (2)
C
92% (44)
D
2% (1)

Explanation

SFC (System File Checker) - run as 'sfc /scannow' - scans all protected Windows system files and replaces corrupted or missing ones with a cached clean copy. Because the malware may have replaced legitimate OS files, running SFC restores system integrity before re-enabling Windows Update, ensuring updates apply to a clean baseline. xcopy (A) is a file-copy utility, chkdsk (B) checks and repairs disk structure/file system errors (not malware-replaced files), and gpupdate (D) refreshes Group Policy settings - none of which address corrupted OS files.

Topics

#SFC#system file checker#malware recovery#Windows OS

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