CompTIA
220-801 · Question #841
220-801 Question #841: Real Exam Question with Answer & Explanation
The correct answer is C: Boot the computer using Last Known Good Configuration.. When a newly installed driver causes a stop error on reboot, Last Known Good Configuration is the best first option because it restores the registry and driver set from the last successful logon, directly reversing the bad driver installation.
Question
A technician has installed a new driver on a computer. Upon rebooting the computer, a stop error occurs before the technician can log back in. Which of the following would be the BEST option for the technician to do NEXT?
Options
- ABoot the computer to the Recovery Console.
- BBoot the computer with a Windows Installation CD.
- CBoot the computer using Last Known Good Configuration.
- DBoot the computer using Safe Mode with Networking.
Explanation
When a newly installed driver causes a stop error on reboot, Last Known Good Configuration is the best first option because it restores the registry and driver set from the last successful logon, directly reversing the bad driver installation.
Common mistakes.
- A. The Recovery Console is a command-line environment for advanced repairs such as replacing files or fixing the MBR, and is unnecessarily complex when Last Known Good Configuration can directly address a recent driver change.
- B. Booting with a Windows Installation CD is used for major operating system repairs or reinstallation and is far more disruptive than needed for a single bad driver issue.
- D. Safe Mode loads a minimal driver set allowing the system to boot, but does not automatically remove the bad driver - the technician would still need to manually uninstall it, making it less efficient than Last Known Good Configuration.
Concept tested. Last Known Good Configuration for bad driver stop error recovery
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