Reuters Pictures
Mike Angiulo (L), Microsoft General Manager of Planning and PC Ecosystems, shows off computers running the new Windows 7 operating system to Microsoft CEO Steve Ballmer in front of television during the launch event. during the Windows 7 Launch Party in New York, October 22, 2009. Microsoft Corp. launched Windows 7 on Thursday in its most important release for more than a decade, aiming to win back customers after the disappointing Vista and strengthen its grip on the PC market.