64 bit - Windows 7: Can I use my 64 bit serial / activation on 32 bit version of Windows 7

  • rzlines

    Possible Duplicate:
    When reinstalling Windows 7, does the language, version, architecture (64-bit or 32-bit) or source (OEM, retail, or MSDN) matter?

    My new computer shipped with a 64 bit version of Windows 7 but I want to install a 32 bit version of it (I have the 64 bit DVD). I also have a 32bit DVD which I bought a copy of for my laptop. Can I install the 32 bit Windows on my new computer and use the 64bit serial to activate it or would I have to purchase a new 32 bit Windows OS?

  • Answers
  • Nitrodist

    In short, no, OEM keys are only good for their respective 32-bit or 64-bit versions.

    If you had the retail product, you can use the serial number for either.

  • Smetad Anarkist

    When I bought Windows 7 I got both the 64-bit and 32-bit version in the box. And just one serial number. So I think it might work.

    But why would you want to use 32-bit instead of 64?

  • ThiefMaster

    MSDNAA serials work on both 32 and 64 bit versions even if they are for the other-bit version. I guess that applies to the non-MSDNAA keys, too.

  • Related Question

    64 bit - Windows 7 Ultimate 32 bit to 64 bit
  • Questioner

    Possible Duplicate:
    When reinstalling Windows 7 or Vista, does the language, version, architecture (64-bit or 32-bit) or source (OEM, retail, or MSDN) matter?

    I have a Windows 7 Ultimate 32 bit NFR Installation DVD, but I want to install the 64 bit version. Is it possible to use the key that I've received for the 32 bit Windows 7 Ultimate version to install the 64 bit version? (e.g. using the Windows 7 ultimate RTM ISO download available from various sources)

    NOTE: Someone that has installed the 32 bit version and then tried a fresh install using a Windows 7 Ultimate 64 bit ISO has stated that the 32 bit key does not work - which I find odd)

  • Related Answers
  • e-t172

    Yes, you can use the same key. Product keys are SKU dependent. They are not architecture dependent.

  • William Hilsum

    Yes, Whilst the media is different, the key licences you to use either as long as it is within the same context... OEM for OEM, Upgrade for Upgrade e.t.c.

  • 8088

    I don't know Microsoft's official position, but at the Server 2008 launch last year they gave out a 32-bit and a 64-bit version. They included 2 keys: 1 for a virtual install, the other for physical. That must mean both keys are valid with both versions.

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    I've also seen VLK's get rejected on OEM CD's and vice versa on XP (used to work for school district and we kept confusing CD's).

    I guess that means your product key is licensed for Windows 7 Ultimate 64-bit NFR as well, but it would be hard to obtain if it even exists, since NFR isn't intended for public distribution. (But hey that doesn't stop some folks, right?)

  • OverloadUT

    Yes, in theory it will work. However, I have had issues in the past doing this. I installed Ultimate 64-bit and it would not activate using my key (which only came with 32-bit, and was a special promotional key)

    At the very worst you'll need to call Microsoft and they'll sort it out for you.

  • studiohack

    NRF = Not For Resale