Windows 10: Install Windows 10 Pro clean on Windows 10 Home Solved

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  1.    15 Dec 2015 #1

    Install Windows 10 Pro clean on Windows 10 Home


    Does anyone know how I install, not upgrade, W10 Pro on a laptop that has W10 Home?
    I bought a W10 Pro licence key off eBay and downloaded the W10 ISO file from Microsoft, but when I try to reinstall from the ISO file (on USB) it rejects a clean install.
    I already tried to use the key as an upgrade through Control Panel but it got 'rejected' & on live chat with Microsoft they said it doesn't register.
    The seller is adamant its a legitimate product key (sells plenty of keys). I have PayPal protection.
      My ComputerSystem Spec

  2.    15 Dec 2015 #2

    yoyoma said: View Post
    on live chat with Microsoft they said it doesn't register..
    You mean Microsoft said it was an invalid key? If they said it is invalid then it is (as it is their servers that validate it) and you should try to get your money back.
      My ComputerSystem Spec

  3.    15 Dec 2015 #3

    lx07 said: View Post
    You mean Microsoft said it was an invalid key? If they said it is invalid then it is (as it is their servers that validate it) and you should try to get your money back.
    Thanks for the reply.
    Is it possible that a Pro licence key only registers for a full install and not for an upgrade?
    Doesn't make sense to me.
      My ComputerSystem Spec

  4.    15 Dec 2015 #4

    I bought a W10 Pro licence key off eBay
    Probably another counterfeit key. Do not buy keys on eBay. Post the eBay link and let us see if it seems fishy.
      My ComputerSystem Spec


  5. Posts : 5,076
    windows 10 Home threshold2
       15 Dec 2015 #5

    yoyoma said: View Post
    Does anyone know how I install, not upgrade, W10 Pro on a laptop that has W10 Home?
    I bought a W10 Pro licence key off eBay and downloaded the W10 ISO file from Microsoft, but when I try to reinstall from the ISO file (on USB) it rejects a clean install.
    I already tried to use the key as an upgrade through Control Panel but it got 'rejected' & on live chat with Microsoft they said it doesn't register.
    The seller is adamant its a legitimate product key (sells plenty of keys). I have PayPal protection.
    It does sound like a counterfeit key.

    However, you have not mentioned this method. Give it a try and see if the key is rejected too......................

    Start button> left side, click Settings > select Update & Security > left side, click Activation > right side, click Change product key >

    enter this generic Win 10 Pro product key.............. VK7JG-NPHTM-C97JM-9MPGT-3V66T >
    That starts changing from Home to Pro version, but NOT activation.
    After that, use your Pro key and try to activate.
      My ComputerSystem Spec

  6.    15 Dec 2015 #6

    Before ending up with a Windows 10 Pro that cannot be activated, I would run showkeyplus from this forum. Use the check product key option, enter the purchased Windows 10 Pro product key and see if it shows as valid.

    Showkey - Windows 10 Forums
      My ComputerSystem Spec

  7.    15 Dec 2015 #7

    davidhk said: View Post
    However, you have not mentioned this method. Give it a try and see if the key is rejected too......................

    Start button> left side, click Settings > select Update & Security > left side, click Activation > right side, click Change product key >

    enter this generic Win 10 Pro product key.............. VK7JG-NPHTM-C97JM-9MPGT-3V66T >
    That starts changing from Home to Pro version, but NOT activation.
    After that, use your Pro key and try to activate.
    If you do that you end up with unactivated 10 Pro. If your Pro key is invalid there is no way back to 10 home except to clean install as you can only upgrade not downgrade using generic keys....
      My ComputerSystem Spec


  • Posts : 5,076
    windows 10 Home threshold2
       15 Dec 2015 #8

    Yes. So if it does not activate, then do a clean install.
    But what if it does activate ?
      My ComputerSystem Spec

  •    15 Dec 2015 #9

    davidhk said: View Post
    Yes. So if it does not activate, then do a clean install.
    But what if it does activate ?
    Then his Pro key was valid.
      My ComputerSystem Spec


  • Posts : 5,076
    windows 10 Home threshold2
       15 Dec 2015 #10

    So, how does one know if it is actually valid or not if one does not try it ?
    Seems to me, verdict has already been passed without giving it a thorough try.
      My ComputerSystem Spec


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