upgrade

  1. K

    Windows 8.1 to 10 no product key

    My cousins laptop was running Windows 10, she sent it in for repair and they 'fixed it' by reverting it back to 8.1. I spoke to Microsoft support and they said I'm able to upgrade it back to 10 for free, however I'm unable to find the 8.1 product key (it's not on a sticker and she doesn't have...
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