A Certkiller .com technician upgrades the video driver on a Windows XP computer. Now the
computer will not boot up properly. What should the technician do FIRST?

A.
Revert to the Last Known Good Configuration.

B.
Run the Recovery Console.

C.
Start the computer in Safe Mode and Roll Back the driver.

D.
Re-install the operating system.

Explanation:
Rolling back the installed device driver in Safe Mode should always be the first thing to try
whenever a computer is not booting after a device driver upgrade.