A recent Windows Update (KB977165) for Windows XP caused many computers to experience Blue Screen of Death (BSOD) errors when the computer restarted after the update. The cause of the blue screen wasn’t just the update, but rather a rootkit (a form of malware) which had been present on the users’ machines prior to the update. The specific error is: PAGE_FAULT_IN_NONPAGED_AREA Techni...