FILE- In this Monday, June 18, 2012, file photo, Microsoft CEO Steve Ballmer comments on the Windows 8 operating system before unveiling its new Surface, a tablet computer to compete w

 

              FILE- In this Monday, June 18, 2012, file photo, Microsoft CEO Steve Ballmer comments on the Windows 8 operating system before unveiling its new Surface, a tablet computer  to compete w
FILE- In this Monday, June 18, 2012, file photo, Microsoft CEO Steve Ballmer comments on the Windows 8 operating system before unveiling its new Surface, a tablet computer to compete with Apple's iPad at Hollywood's Milk Studios in Los Angeles. Microsoft on Wednesday, June 25, 2013 will release a preview of Windows 8.1, a free update that promises to address some of the gripes people have with the latest version of the company's flagship operating system. (AP Photo/Damian Dovarganes, File)