VMWare Fusion Using Boot Camp

Discussion in 'Windows, Linux & Others on the Mac' started by belt1, Jan 10, 2010.

  1. belt1 macrumors newbie

    Jan 10, 2010

    I have Windows 7 64-bit installed via Boot Camp. It runs beautifully in Boot Camp but when I try to mount the Boot Camp partition in VMWare Fusion, the speed is less than stellar. This brings me to my question:

    Is there a performance difference running Windows by doing a clean install in VMWare fusion versus mounting an already installed Windows Boot Camp partition using Fusion?

  2. maflynn Moderator


    Staff Member

    May 3, 2009
    You have to things going against you.
    1. The performance hit of running a 64bit OS within vmware (make sure you set the type to win7 x64)
    2. The performance hit of vmware using the bootcamp partition.

    You'll get a better experience if you use vmware's VMDK disk images for your guest os then bootcamp.

    Combining both the overhead needed to host a 64bit OS and using bootcamp is certainly going to make the guest OS much slower then running it natively within bootcamp or slower then using a 32bit os within vmware's proprietary disk images.

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