Question

Difficulty: MediumResolving System File Corruption and Driver Issues

Following an improper graphics driver installation, a Windows workstation displays visual artifacts and experiences spontaneous crashes during graphics-intensive tasks. The desktop technician needs to check the operating system for unsigned drivers and revert the display adapter to its previously installed, working driver state. Which of the following actions should the technician perform? (Select TWO.)

  1. Run sigverif from the Command Prompt or Run dialog to check for unsigned drivers.Answer
  2. Open Device Manager, access the display adapter properties, and select Roll Back Driver.Answer
  3. C
    Open Event Viewer and clear the System log to reset corrupted driver configuration files.
  4. D
    Open Programs and Features in Control Panel and choose Repair on the Windows Display Driver Framework.

Answer

The technician should run sigverif to inspect for unsigned drivers and use the Roll Back Driver option within Device Manager for the display adapter.
Executing sigverif identifies any unverified or unsigned system drivers that may be causing crashes, while using the Roll Back Driver function in Device Manager safely replaces the problematic graphics driver with the previously installed stable version.

Step-by-Step Solution

1
Identify unsigned drivers causing instability
Running sigverif scans the operating system and generates a log of non-digitally signed device drivers.
Unsigned drivers lack verification from Microsoft and can cause kernel-level memory faults or crashes.
2
Revert to the known-good graphics driver
Navigating to Device Manager, opening the graphics card properties under Display Adapters, and clicking Roll Back Driver reinstalls the previous driver version.
Roll Back Driver restores functional driver files and clears newly introduced corrupt or incompatible driver binaries.

Key Concept

Driver Integrity Verification and Driver Rollback Management
Estimated Time:1m 30s
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