CompTIA
220-802 · Question #705
220-802 Question #705: Real Exam Question with Answer & Explanation
The correct answer is C: Last Known Good Configuration. Last Known Good Configuration restores the registry settings and drivers from the most recent successful boot, quickly undoing the damage caused by the bad driver installation.
Question
After installing an updated video card driver in a Windows XP machine, a technician sees a bluescreen of death (BSOD). Which of the following would BEST help the technician repair the computer?
Options
- AUpdate antivirus definitions
- BRun System Restore
- CLast Known Good Configuration
- DFactory pre-installation CD
Explanation
Last Known Good Configuration restores the registry settings and drivers from the most recent successful boot, quickly undoing the damage caused by the bad driver installation.
Common mistakes.
- A. Updating antivirus definitions addresses malware threats and has no effect on a BSOD caused by a faulty hardware driver.
- B. System Restore would also fix the issue but requires Windows to boot far enough to access the recovery tool, making it slower than selecting Last Known Good Configuration at the boot menu.
- D. Using a factory pre-installation CD would wipe the system and reinstall the OS from scratch, which is a destructive last resort not appropriate for a driver-related BSOD.
Concept tested. Last Known Good Configuration for driver-caused BSOD
Reference. https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/understanding-the-metadata-cache
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