Microsoft took steps Tuesday to avoid repeating the debacle two months ago that left Windows XP users staring at the notorious "Blue Screen of Death" error message after they applied a patch.

In February, a security update that fixed two flaws in the Windows kernel -- the operating system's most important component -- wreaked havoc when it was applied by users, who almost immediately flooded Microsoft 's support forum with reports of crippled computers .

As the number of reports grew, Microsoft first stopped automatically serving the MS10-015 update, then confirmed that a rootkit caused the crashes . Only PCs that had been previously infected with the Alureon rootkit were incapacitated, Microsoft's investigation found.

More: http://pcworld.com/article/194205/

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