Microsoft Corp. has confirmed in a knowledge base article that its patch for a critical bug can cause some W-indows 2000 systems to lock up and fail at boot time.
The patch is for a particularly critical vulnerability of which experts have begun to see exploits in the last few days.
The knowledge base article goes by the unusually long name: "Your computer stops responding, you cannot log on to w-indows, or your CPU usage for the System process approaches 100 percent after you install the security update that is described in Microsoft Security Bulletin MS04-011."
The problem occurs, according to the article, because w-indows tries repeatedly to load drivers that fail to load. Microsoft acknowledges that the problem is a bug in the patch and that the company is investigating solutions.
http://support.microsoft.com/default...b;EN-US;841382