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Can I dual boot Vista Ultimate 32 bit with Windows 7 Ultimate 64 bit? RRS feed

  • Question

  • I have been running Vista Ultimate 32 bit for some time on my Asus P5N32E-S-LI plus mobo with 4gb memory and three pairs of HDDs in RAID mirror, one for Vista, two for data. I cleared off a pair, formatted them and installed Win7 Ultimate 64bit which runs as long as I leave the 7 disc in the dvd drive. It has happily updated with all the updates and runs well. I can see the data on the other drives but I cannot work out how to dual boot. When I go to advanced startup settings there is only one OS seen. If I remove the win 7 disc it wont boot saying there is a boot system failure.

    To boot back to Vista I have to alter the bios settings and again in only shows one OS as a boot option so they are not seeing each other. Having invested in Win7 Ultimate for the main benefit of extra memory usage I don't want to revert to Win 7 32bit unless my dual boot requirements are unacheivable. It appears that others have managed similar setups so maybe I did something wrong when I installed 7. I haven't activated it yet so could start all over again if I need to?

    I want to retain Vista 32bit for software that won't run under 64bit otherwise I would start from scratch. When I started the 7 install I went for clean install option if that is relevant? Any help much appreciated so I can re-build and set up over the festive break when I have a bit of time

    Sunday, December 19, 2010 8:36 AM

Answers

  • When running the Win7 setup from Vista you do an upgrade, which is not possible (you can't upgrade from 32 to 64bit).

    Create a new partition, reboot from the Win7 DVD and install Windows7.


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    Sunday, December 19, 2010 9:31 PM

All replies

  • You can install Windows 7 Ultimate into a VHD file, so you don't need to new partition to install Windows 7.

    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    Sunday, December 19, 2010 2:43 PM
  • Thanks Andre,

    I really wanted to install the 7 on new discs as the Vista pair are over 3 years old. Did I miss a step when first loading 7? I tried to do it from Vista but of course it wouldnt accept it as 64 onto 32 won't go. I thought that a clean install would do it but no joy. Could I start again with a VHD file on the new disc and if so how? Thanks for your help

    Mike


    talk2mike
    Sunday, December 19, 2010 3:20 PM
  • When running the Win7 setup from Vista you do an upgrade, which is not possible (you can't upgrade from 32 to 64bit).

    Create a new partition, reboot from the Win7 DVD and install Windows7.


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    Sunday, December 19, 2010 9:31 PM
  • Andre,

    Thanks again. I installed 7 to a new hard drive as a custom install as upgrade wasn't an option. I am wondering if the booting problem is because Vista is on one HDD and 7 on another? I can boot up either OS but only by leaving the instal disc in and altering the bios to a boot sequence for either one or the other system.

     


    talk2mike
    Monday, December 20, 2010 2:59 PM
  • You can use EasyBCD [1] to add a boot entry for the new Windows 7.

    André

    [1] http://neosmart.net/dl.php?id=1


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    Monday, December 20, 2010 4:34 PM
  • Hi Andre, I have installed EasyBCD under both Vista and 7 and now I can boot up to 7 with no OS disc in the optical drive and can also select which OS I next boot to when in 7 however I can only boot into Vista with the OS disc in the optical drive otherwise I get a message saying there is no boot setting. I have tried doing a "repair" but it says there is no problem. Maybe I have destroyed the Vista boot settings but how do I get them back?

    When I reboot to 7 I get an offer to boot 7 or Vista but not the other way round. Hopefully I am nearly there?

    Thanks for you help to date

    Mike


    talk2mike
    Thursday, December 23, 2010 4:18 PM