Microsoft retains weapon to silently scrub XP

Microsoft will be able to silently reach into Windows XP PCs for more than a year after it stops patching the aged OS to clean malware-infected machines, sources close to the company confirmed Friday.

The Malicious Software Removal Tool (MSRT) will continue to be updated and deployed via Windows Update through July 14, 2015, 15 months after the Redmond, Wash. company serves its final public security patches for XP on April 8 of this year.