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The upgrade will be free and available from the home screen when it launches, while a preview version will be opened up to the public on June 26th at the beginning of Build 2013.
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Tami Reller, the CMO and CFO of Microsoft's Windows Division made the big reveal during JP Morgan's Technology, Media & Telecom Conference. Now, Microsoft is officially rechristening the platform, and with a more staid name: Windows 8.1. One of the worst kept secrets rattling around Microsoft's campus is Windows Blue, the forthcoming update to Windows 8 that addresses users' bugbears about the OS.
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