220-1102 Operating Systems Practice Question
A user reports that after installing a Windows Update, an external monitor connected to a Windows 10 workstation is no longer detected. The technician suspects the update installed an incorrect display driver. Which built-in Windows tool should the technician use to revert the driver?
⚠ Common exam trap
Candidates often confuse System Restore with driver rollback, but System Restore is a broader recovery tool that reverts system files and registry settings, whereas Device Manager’s Roll Back Driver is the precise tool for reverting only the driver.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Device Manager
Device Manager allows the technician to roll back a driver to the previous version. After a Windows Update installs an incorrect display driver, the Roll Back Driver button on the driver’s Properties page reverts to the last known good driver, restoring external monitor detection without affecting other system settings.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Device Manager
Why this is correct
Device Manager is the correct tool because the Driver tab of a device's Properties dialog includes the 'Roll Back Driver' button. This option reinstalls the previously installed driver version, which is a targeted fix for driver-related breakage after a Windows update. It avoids affecting other devices or system components, making it the most surgical approach to restore external monitor functionality.
- ✗
System Configuration (msconfig)
Why it's wrong here
System Configuration (msconfig) is a diagnostic tool for managing boot options, startup programs, and Windows services. It has no driver management capabilities whatsoever, so it cannot roll back a display driver. While it could potentially disable services to troubleshoot, it does not revert driver files and would not resolve the monitor's driver conflict.
- ✗
Windows Update
Why it's wrong here
Although Windows Update lets you uninstall the specific update that caused the problem, doing so reverts every change that update made, including security patches and feature improvements. It is a broad system-wide action rather than a precise driver-only fix. Additionally, if the driver was bundled with the update, uninstalling it may remove the driver entirely, leaving you without a display driver until you reinstall it.
- ✗
System Restore
Why it's wrong here
System Restore reverts system files, registry settings, and installed programs to a previous restore point. It would affect many system components, not just the driver, and is not the best tool for a targeted driver rollback.
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Related to this question
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Windows Update Configuration
Key term
Windows
Windows is a family of operating systems developed by Microsoft that manages computer hardware and software, providing a graphical user interface for users to interact with their devices.
Key term
Device Manager
Device Manager is a built-in Windows tool that shows you all the hardware connected to your computer and lets you manage the drivers that make that hardware work.
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Written by Johnson Ajibi, MSc IT Security
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