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Associated Press
Microsoft Surface Pro tablets are seen at a demo table at a Microsoft event in San Francisco, Wednesday, June 26, 2013. Microsoft on Wednesday released a preview version of an update to Windows 8, aiming to address some of the gripes people have with the company's flagship operating system. At a conference in San Francisco, Microsoft CEO Steve Ballmer acknowledged that the company pushed hard to get people to adopt a radical new tile-based "Modern" user interface in Windows 8. Microsoft is now back-pedaling, making it easier to reach and use the older "desktop" interface. (AP Photo/Jeff Chiu)

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