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220-802 · Question #709

After rebooting, a technician sees the Windows logo but when Windows boots up, no video appears. Which of the following options would be the QUICKEST way to restore the computer?

The correct answer is B. Last Known Good Configuration. Last Known Good Configuration is the quickest boot-time recovery option because it reverts driver and registry changes made since the last successful logon without requiring Windows to fully load.

Hardware and network troubleshooting

Question

After rebooting, a technician sees the Windows logo but when Windows boots up, no video appears. Which of the following options would be the QUICKEST way to restore the computer?

Options

  • AVGA Mode
  • BLast Known Good Configuration
  • CSafe Mode with Networking
  • DSafe Mode

How the community answered

(29 responses)
  • A
    3% (1)
  • B
    86% (25)
  • C
    3% (1)
  • D
    7% (2)

Why each option

Last Known Good Configuration is the quickest boot-time recovery option because it reverts driver and registry changes made since the last successful logon without requiring Windows to fully load.

AVGA Mode

VGA Mode boots Windows with a generic low-resolution video driver and could restore display, but it is not a permanent fix and does not revert any configuration changes that caused the problem.

BLast Known Good ConfigurationCorrect

Last Known Good Configuration loads the Control Set saved during the previous successful Windows session, reverting any driver or registry changes that may have caused the video failure, and it is accessible from the boot menu before Windows attempts to load the problematic configuration.

CSafe Mode with Networking

Safe Mode with Networking loads Windows with minimal drivers and network support, which takes more steps and is a diagnostic mode rather than a quick restoration option.

DSafe Mode

Safe Mode loads minimal drivers for troubleshooting purposes but does not automatically restore the system to a working state, requiring further manual intervention.

Concept tested: Last Known Good Configuration for post-boot video failure

Source: https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-recovery-environment--windows-re--technical-reference

Topics

#Last Known Good Configuration#video driver#Windows boot failure#OS recovery

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