Windows 10: Mistakenly Changed Product Key After Windows 10 Free Upgrade

  1.    03 Aug 2015 #1

    Mistakenly Changed Product Key After Windows 10 Free Upgrade

    I downloaded the Windows 10 Free Upgrade on July 29th and read somewhere that I should change product key for Build 10240. Now it will not activate.

    Did I make a mistake with the product key and is that causing my activation failure?

    If so, how do I get my Windows 10 Upgrade activated?


    Screen Shot:
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      My ComputerSystem Spec


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