Windows 10: Windows 10 Pro key wont activate

Discus and support Windows 10 Pro key wont activate in Windows 10 Updates and Activation to solve the problem; Hello! My name is Elmar and i recently bought a Windows 10 pro key, i am currently running 'Windows 10 pro EN 64Bit' without the activation key. When... Discussion in 'Windows 10 Updates and Activation' started by FGminy Elmar, Feb 1, 2020.

  1. Windows 10 Pro key wont activate


    Hello!

    My name is Elmar and i recently bought a Windows 10 pro key, i am currently running 'Windows 10 pro EN 64Bit' without the activation key.
    When i try to activate the key i get the error message 'The last product key you entered can't be used on this copy of Windows. 0x803FA067
    I have looked up the error code but couldn't find any solutions, i have also tried the Troubleshoot.

    :)
     
    FGminy Elmar, Feb 1, 2020
    #1
  2. Laurijan Win User

    Windows 10 Activation (Insider)

    I bought Windows 7 Pro OEM key from G2Play.net for 12€ to upgrade to Windows 10 Pro - worked like a charm but be advised if you buy a OEM key you can not download the Win 7 iso from microsoft and have to get it elsewhere.
     
    Laurijan, Feb 1, 2020
    #2
  3. FX-GMC Win User
    Windows 8.1 pro + WMC key activation

    This worked for me last time with a Win 8 key.

    Install Windows 8.1 and enter KMS key during setup. Once in windows change product key to my Windows 8 key. Go to add features and enter my WMC add-on key. Drink a beer to a job well done.
     
    FX-GMC, Feb 1, 2020
    #3
  4. tigger Win User

    Windows 10 Pro key wont activate

    Windows 8.1 pro + WMC key activation

    So it will be fine installing 8.1 pro with a KMS key, then switch to my 8 pro key and it will activate ok?

    Maybe a daft question but why can't you just install 8.1 pro with the 8 pro key, or is it different keys for 8 and 8.1? seems silly when 8.1 is a free update anyway.
     
    tigger, Feb 1, 2020
    #4
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Windows 10 Pro key wont activate

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