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64-bit Architecture

boyles23boyles23 Member Posts: 130
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If you have a motherboard and CPU that are built to run 64-bit architecture will they run a 32-bit Windows XP. I feel like I should know this icon_redface.gif but I haven't every run acros this before, thanks in advance for your advice.


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    JDMurrayJDMurray Admin Posts: 13,031 Admin
    The x64 AMD and Intel architectures are compatible at the hardware level with x86 (32-bit) architecture, but I'll bet that 64-bit processors are not recognized as supported hardware by the 32-bit Windows XP installer. I would think that Microsoft wants you to spend the extra $$$ for x64 Windows if you have an x64 machine.

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    blargoeblargoe Member Posts: 4,174 ■■■■■■■■■□
    I've never had any trouble getting 32-bit Windows to run on x64 capable hardware. Actually I'm pretty sure there isn't a difference in cost between x86 and x64 Windows either. I know we're not paying any more as a Volume Licensing customer.

    They used to have a program where you could swap your OEM license for x86 for an x64 license I think. But if you're going to be supporting this computer it would be better to run x86 if you want to be able to run most of your applications.
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    JDMurrayJDMurray Admin Posts: 13,031 Admin
    blargoe wrote:
    They used to have a program where you could swap your OEM license for x86 for an x64 license I think.
    It doesn't look like this is the case for Windows Vista: Can I upgrade from a 32-bit version of Windows to a 64-bit version of Windows?

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    Uranium-235Uranium-235 Member Posts: 12 ■□□□□□□□□□
    32-bit programs are not allowed to access 64-bit libraries. I've never dealt with an x64 windows myself, but I would guess for instance a game using OpenGL has to initialize windows naitive OpenGL32.dll, before being passed into the drivers opengl hardware rendering support. If it's a 32-bit game, I don't believe it would work. This is just an educated guess, someone here might prove me wrong, no, someone here should prove me wrong. Am I wrong?
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    lex0429lex0429 Member Posts: 55 ■■□□□□□□□□
    JDMurray wrote:
    blargoe wrote:
    They used to have a program where you could swap your OEM license for x86 for an x64 license I think.
    It doesn't look like this is the case for Windows Vista: Can I upgrade from a 32-bit version of Windows to a 64-bit version of Windows?


    hes saying you can physically obtain a 64bit version of the OS..that link you posted is saying if you have 32bit vista installed you cant upgrade to 64bit, you would have to do a clean install.

    no there is no difference in cost
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