Windows 8 and 8.1 Forums


installing Windows 8.1 Pro

  1. #1

    installing Windows 8.1 Pro


    Im in the process of installing Windows 8.0 Pro and 8.1 Pro on a New build Ive done for my brother so what I have is a copy I won a while back of Windows 8 Pro Full version with legit product key! ,and also Just finally DL Windows Windows 8.1 Pro Full package version from Microsoft build 9600! To test it out Ive done a Fresh install of Windows 8 Pro on a spare PC with no internet connection and did not activate Windows 8 Product key for test reasons! Install went perfectly! No Issues! Then I proceeded to install 8.1 Pro using the upgrade option for saving files and personal settings from Windows 8! The 8.1 Upgrade went perfectly and created its own product key and Product ID! My Question should I activate it using the product key from Windows 8.1 Pro or should I activate it using product key from 8.0 !
    Another Question When I install Windows 8 pro on the New build PC should I activate it prior to installing Windows 8.1 Pro and then do the upgrade? Or should I upgrade it to 8.1 and use the product key it generates or change it to the Wondows 8 Pro key and then Activate it? Will this procedure work! ! Im not a tech genuis and also after 2 brain surgeries if diminished my ability to eplain things at times so I hope you can understand my procedure and questions!
    If I do install Windows 8 Pro with its key and activate it will it interfere with me using the same key to activate 8.1? Hope you can make sence of my questions!

      My System SpecsSystem Spec

  2. #2


    Posts : 2,690
    Windows 3.1 > Windows 10


    Create installation media for Windows 8.1 - Windows Help

    Download any version and use your windows 8 product key
      My System SpecsSystem Spec

  3. #3


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    Also, just to be clear, you cannot upgrade from 32 to 64 bit, it has to be clean install.
      My System SpecsSystem Spec

  4. #4



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,288
    Windows 10 Pro 64 bit


    Quote Originally Posted by popeye View Post
    Also, just to be clear, you cannot upgrade from 32 to 64 bit, it has to be clean install.
    What I was hinting at is:
    A computer with a 32-bit processor cannot have a 64-bit version of an operating system installed. It can only have a 32-bit version of an operating system installed
      My System SpecsSystem Spec

  5. #5


    Quote Originally Posted by popeye View Post
    Also, just to be clear, you cannot upgrade from 32 to 64 bit, it has to be clean install.
    That's not an issue I have both versions Windows 8.0 Pro and Windows 8.1 Pro both 64 bit! My question is procedure I have legit key for 8.o Pro should I install it and activate it and then upgrade to 8.1 Pro keeping my settings then go through the activation again after 8.1 is installed! On my previous post on a test machine I installed Win 8 with prod key skipped activation then upgraded to 8.1 keeping previous settings and it loaded without asking for a product key instead created its own ! So I guess what Im asking is should I activate after each install and change Win 8.1 product key back to 8.0 product key to finalize
      My System SpecsSystem Spec

  6. #6


    Posts : 2,690
    Windows 3.1 > Windows 10


    No just use the tool and install windows 8.1 with your windows 8 key
      My System SpecsSystem Spec

  7. #7


    Posts : 22,564
    64-bit Windows 10


    Hello amdcrankitup,

    As KYHI posted above, you can use OPTION ONE in the tutorial below to select to download a Windows 8.1 ISO file that you can activate with either your Windows 8 product key.

    Windows 8 and Windows 8.1 ISO - Download or Create
      My System SpecsSystem Spec

  8. #8


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Quote Originally Posted by KYHI View Post
    Create installation media for Windows 8.1 - Windows Help

    Download any version and use your windows 8 product key
    That download will let you install and activate Windows 8.1 with Windows 8.0 or 8.1 keys. No need to install 8.0 and upgrade. Just download and install 8.1 Pro and activate with your 8.0 key or 8.1 key. I'd use the 8.0 key. Then save the 8.1 key for another PC.
      My System SpecsSystem Spec

  9. #9


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center


    I assume you bought the 8 Pro Pack.
    My experience---

    Bought 8 OEM computer.
    Set up Microsoft account.
    Activated it.

    Bought 8 Pro Pack.{$40 then}
    Downloaded 8 Pro from the Store & installed it using my Microsoft account.
    It activated automatically.
    I didn't lose anything.

    Upgraded to 8.1 Pro from the Store & installed using my Microsoft account.
    Didn't lose anything.
    It activated automatically.

    That's all.
    Hope it helps.
      My System SpecsSystem Spec

  10. #10


    Quote Originally Posted by David Bailey View Post
    I assume you bought the 8 Pro Pack.
    My experience---

    Bought 8 OEM computer.
    Set up Microsoft account.
    Activated it.

    Bought 8 Pro Pack.{$40 then}
    Downloaded 8 Pro from the Store & installed it using my Microsoft account.
    It activated automatically.
    I didn't lose anything.

    Upgraded to 8.1 Pro from the Store & installed using my Microsoft account.
    Didn't lose anything.
    It activated automatically.

    That's all.
    Hope it helps.
    And than you made full system backup so you don't have ever to go thru all that again if system goes belly up.
      My System SpecsSystem Spec

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installing Windows 8.1 Pro
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