Installed Win7 32-bit. Now want 64-bit


  1. johne53
    Posts : 48
    Windows 7
       New #1

    Installed Win7 32-bit. Now want 64-bit


    I have 2 x Windows 7 partitions on my system, both of which are 32-bit installations. I'd like to upgrade one of the installations to 64-bit (I do have a 64-bit machine BTW). Are there any caveats I should know about? I've gathered that an 'upgrade' requries me to choose the Custom Install option which loses all my data files and 3rd party programs but that's no problem; I can back them up and replace them. Anything else I should know about? e.g. will my other partition be left intact?
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  3. theog
    Posts : 11,408
    ME/XP/Vista/Win7
       New #2

    Only check for 64 bit drivers.
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  4. seavixen32
    Posts : 7,730
    Windows 7 Ultimate SP1 64-Bit
       New #3

    Have a read here: 32-bit and 64-bit Windows: frequently asked questions

    You can't upgrade, it'll need to be a Custom install.

    You might need to edit the boot screen as well: BCDEDIT - How to Use

    Your other partition will be left intact.
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