Caitlin I upgrade Windows 10 non genuine version to legitimate just by

  1.    11 Feb 2018 #1

    Caitlin I upgrade Windows 10 non genuine version to legitimate just by

    I'm right now on Windows 10 Pro non genuine version. I'm planning to buy the legitimate version from Microsoft and change the product key in my existing Windows 10 installation. Will that work? Or do I need to install the OS as a whole ? That would make me install all the apps and data once again and that's why I'm looking at this option.
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  2. ThrashZone's Avatar
    Posts : 4,267
    3-Win-7Prox64 2-Win10Prox64
       11 Feb 2018 #2

    No you just have to feed the current install a key
    MS doesn't issue keys though
    So just go to the store through 10's activation section
    You'll have to make or be using a MS account to purchase the 10 pro.
      My ComputersSystem Spec

  3.    11 Feb 2018 #3

    I think your best bet would be to change the product key to the generic Windows 10 Pro product key:

    Then, when your Windows 10 Pro is no longer activated, go to the Microsoft store to purchase a legitimate activation for it.
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  4.    11 Feb 2018 #4

    Thanks. How much will it cost?
    And my apps and files will be intact?
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  5. Layback Bear's Avatar
    Posts : 994
    Windows 7/64 Professional
       12 Feb 2018 #5

    Or you could do what I did.

    Bought a Microsoft DVD which came with a matching COA key from my local computer store.
    Windows 10 Pro is about $145.00.

    I would not trust a counterfeit installation. I would do a Clean Install.

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