CompTIA A+ Core 2 (220-1202)Operating SystemsMedium
A user reports that their Windows 11 computer is displaying a blue screen error during startup and is unable to boot into the operating system. They recently installed a new device driver. Which advanced startup option would be most appropriate to attempt to revert the system to a previous working state?
- ASafe Mode
- BStartup Repair
- CLast Known Good Configuration
- DEnable Low-resolution Video
Show answer & explanationAnswer & explanation
Correct answer: C. Last Known Good Configuration
Last Known Good Configuration starts Windows with the most recent system settings that worked correctly, which is ideal for resolving issues caused by newly installed drivers or software that prevent booting.
Why the other options are wrong
- A. Safe Mode starts Windows with a minimal set of drivers and services, which can help diagnose issues but doesn't automatically revert to a previous working state.
- B. Startup Repair attempts to fix common boot problems but doesn't specifically target reverting driver changes like Last Known Good Configuration does.
- D. Enable Low-resolution Video is primarily for display driver issues, not general boot failures caused by other drivers.
Last Known Good Configuration
An advanced startup option in Windows that loads the operating system using the registry and driver configuration that was saved the last time the computer successfully booted.
- Useful for resolving boot issues caused by incorrect driver installations.
- Reverts system settings to a known stable state.
- Does not affect user data files.
Memory trick: Safe Boot always knows the last good config.