If I've installed the consumer preview and would like to keep Windows 8 as my main operating system, will I ever have to uninstall it or purchase it in the future?
closed as not a real question by Diogo, Dave M, Journeyman Geek, Nifle, techie007 Jul 29 '12 at 21:27
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In short, yes. According to this site: "Previous beta versions of Windows 8, like the Developer Preview or Consumer Preview, can not be upgraded" to the full version.