CompTIA Tech+ (FC0-U71)Applications and SoftwareMedium
A technician is troubleshooting a Windows 10 workstation where a recently installed application is not launching correctly. The error message indicates that a specific DLL file is missing. The technician suspects the application's installation was corrupted. Which command-line utility can the technician use to attempt to repair system files, including potentially corrupted DLLs?
- ADEFRAG
- BSFC
- CCHKDSK
- DDISKPART
Show answer & explanationAnswer & explanation
Correct answer: B. SFC
The System File Checker (SFC) utility is specifically designed to scan for and restore corrupted or missing Windows system files, including DLLs, by replacing them with correct versions.
Why the other options are wrong
- A. DEFRAG optimizes file fragmentation on hard drives, which is unrelated to missing DLLs.
- C. CHKDSK checks for and repairs file system errors and bad sectors on a disk, not missing system files.
- D. DISKPART is used for managing disk partitions and volumes, not for repairing system files.
System File Checker (SFC)
A command-line utility in Windows that scans for and restores corrupted, damaged, or missing protected system files with their correct versions.
- Used to repair Windows system files.
- Scans for integrity violations.
- Replaces incorrect versions with correct Microsoft versions.
Memory trick: SFC scans for bad files, 'cause system files are a sacred trust.