Changing Office from 32 bit to 64 bit

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  1. bromberg
    Posts : 245
    windows 10
       New #1

    Changing Office from 32 bit to 64 bit


    I am running the 32 bit edition of Office 2016 Pro 32 on my PC which has a 64 bit processor.
    Do I have to purchase a new (64 bit) version of Office to take advantage of my 64 bit CPU?

    Thanks in advance to all who reply,
    Dan
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  3. debsawyer
    Posts : 81
    10
       New #2

    If you read this you will get a better understanding of what you need to do:

    How to upgrade from a 32-bit to 64-bit version of Windows 10 | Windows Central
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  4. Kyhi
    Posts : 4,142
    Windows 3.1 to Windows 11
       New #3

    No you do not need a new key to change the Arch of your software... the product key is for both x86 (32 Bit) and x64 (64 Bit) versions...
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  6. bromberg
    Posts : 245
    windows 10
    Thread Starter
       New #4

    debsawyer said:
    If you read this you will get a better understanding of what you need to do:

    How to upgrade from a 32-bit to 64-bit version of Windows 10 | Windows Central
    Deb,
    Sorry that I wasn't clear, but I'm already running Win 10 Pro 64 bit - it's the Office 2016 that is running 32 bit (which I would like to change to 64 bit).
    Dan
      My Computer
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  7. bromberg
    Posts : 245
    windows 10
    Thread Starter
       New #5

    Kyhi said:
    No you do not need a new key to change the Arch of your software... the product key is for both x86 (32 Bit) and x64 (64 Bit) versions...
    Kyhi,
    So are you saying that I have to re-install Office or is there a more convenient way to do it?
    Dan
      My Computer
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  8. Kyhi
    Posts : 4,142
    Windows 3.1 to Windows 11
       New #6

    you have uninstall 32 bit and install 64 bit

    you can try running 64 bit installer - but feel you will get error
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  9. debsawyer
    Posts : 81
    10
       New #7

    Yes you will have to uninstall 32bit, and install 64bit Office.
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  10. debsawyer
    Posts : 81
    10
       New #8

    The key is the same for 64 & 32 bit.
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  12. Bree
    Posts : 31,603
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       New #9

    bromberg said:
    I am running the 32 bit edition of Office 2016 Pro 32 on my PC which has a 64 bit processor.
    Do I have to purchase a new (64 bit) version of Office to take advantage of my 64 bit CPU?
    Think carefully before choosing which version to use, there are pros and cons for each. Yes, you must uninstall the 32-bit version before installing 64-bits. More here....

    Microsoft Office said:
    Important: If you already installed the 32-bit version, but want to install the 64-bit version instead (or vice versa), you must uninstall the version you don't want before installing the version you do want. See “Office (64-bit or 32-bit) couldn’t be installed” error when trying to install....

    ...IT Professionals and developers in particular, should also review the following situations where the 32-bit version of Office is still the best choice for you or your organization...
    Choose between the 64-bit or 32-bit version of Office
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  13. bromberg
    Posts : 245
    windows 10
    Thread Starter
       New #10

    debsawyer said:
    Yes you will have to uninstall 32bit, and install 64bit Office.
    Not surprised and not as bad as a BSoD
    Thanks!
    Dan
      My Computer
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