Turning vista 32-bit into 7 64-bit?

So basically I just installed my FX-4130 with 8GB ram, and I need to get a 64-bit OS. I read through some sites etc. and seems like you must boot your computer with an OS DVD in order to turn 32-bit into 64-bit. So my question is, can I boot up an upgrade DVD or do I need an OEM one? Also do most places that sell OS's have OEM's too? Windows 8 upgrade costs only 59€ now, normally 270€ so I'd get that if I can turn my computer into 64-bit with that.
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  1. yes all you need is a upgrade version of a 64-bit OS
  2. No, you cannot upgrade from 32-bit to 64-bit. You need a fresh (clean) install. But I'm just referring to the installation method (not the licensing), I think you can still save money and just buy the upgrade DVD to Windows 8 64-bit.

    In other words, from a legal standpoint, I think you can buy the upgrade license to Windows 8 64-bit from Vista 32-bit (I think you can even upgrade from XP 32-bit). With an "upgrade" CD you still have the option to do a clean install (I think). Just back up all your files on a external drive and do a full install (reformat) and you should be fine. But you can check with your vendor he might provide more information.

    Here's more information:

    http://technet.microsoft.com/en-us/library/jj203353.aspx

    Or here:

    http://answers.microsoft.com/en-us/windows/forum/windows_8-windows_install/upgrading-to-windows-8-64-bit-from-xp-32-bit-using/2b405931-17b3-4e63-b46e-664b3fea6908
  3. if you have a version of win7 (does not need to be activated)... you can install win8 using the upgrade version.
    (install win7... just click the "entrer key "

    TL;DR... install any supported version of windows... then delete the previous win install using the advanced/other opitions tab in the win8 install... then go back to the win8 "clean install" option and install win8... done, and no need for the non-upgrade version of win8...

    BUT, if you get the "full" or oem version of win8, it has downgrade or the key that can be used for a win7 install.
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