Reinstalling Win7 Pro 32 Bit OEM on a Different PC


  1. PBelevski
    Posts : 3
    Windows 7 Proffesional 32 Bit
       New #1

    Reinstalling Win7 Pro 32 Bit OEM on a Different PC


    Hi Guys,

    I mistakenly purchased a 32 bit version of windows 7 pro which was on OEM. Now I am going to purchase the 64 bit version OEM software again and format my hard drive and reinstall the 64 bit OS on my PC.

    My question is now that I will be using the 64 Bit version, can I re-use my 32 bit OEM on a completely different PC as it will no longer be installed on my PC?

    If so do I have to uninstall it first or will a simple wipe off the hard drive deactivate the 32 bit key?

    Also is there a cheaper option to purchasing the OEM software again, such as upgrading from 32bit to 64bit?
    Last edited by PBelevski; 07 Dec 2010 at 20:18.
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  3. gregrocker
    Posts : 50,642
       New #2

    Each license can be used for either 32- or 64-bit, you can change at any time as often as you want, as long as the license is used on only one installation at a time. However with OEM you are locked to the motherboard you first install upon.

    More on OEM restrictions: Windows 7 OEM and Regular?
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  4. PBelevski
    Posts : 3
    Windows 7 Proffesional 32 Bit
    Thread Starter
       New #3

    Ok so what your saying is I dont need to buy a brand new 64 bit OEM version I can just use my Key and simply install the 64 bit software on my PC? If so can I download an iso for the 64 bit software from anywhere or how would i get my hands on it?
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  6. gregrocker
    Posts : 50,642
       New #4

    We are not allowed to link to downloads as it enourages piracy.

    It's best to borrow one from a friend, copy the DVD, or if another version extract the ISO using ImgBurn, remove ei.cfg file using this tool to burn an all-versions DVD to reinstall with your Product Key.

    Or you can download one from the web - just be sure to rightclick scan with your AV, and test the HASH to compare to official HASH to make sure nothing has been added or deleted from Win7.
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  7. PBelevski
    Posts : 3
    Windows 7 Proffesional 32 Bit
    Thread Starter
       New #5

    Thanks man, you've just saved me another $150, I didnt realise I could use the 32 Bit key with 64 Bit software.
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