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Why Can't I Upgrade from Vista Home Premium to Vista Ultimate? RRS feed

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    I have a dual booting laptop configured with Vista Home Premium  and Windows 7 Professional.

    I bought Vista Ultimate Professional to upgrade the installed Vista. The "Upgrade" feature is disabled in my Vista Ultimate Professional (complete) package. Why?

     

    • Moved by Sheng Jiang 蒋晟 Saturday, June 14, 2014 1:30 AM should ask on answers.microsoft.com
    Thursday, November 3, 2011 7:45 PM

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