Windows 7 installation on usb

Discussion in 'Windows, Linux & Others on the Mac' started by dnlt, Apr 2, 2011.

  1. dnlt macrumors newbie

    Feb 24, 2011
    So I bought windows 7 and downloaded the iso. I used windows 7 usb/dvd download tool to make my usb bootable with the windows 7 iso. I installed rEFIt. When I restart and select the windows usb icon it loads and I get the error "no bootable device - insert disk..... "

    I have no idea what is wrong ugh! I looked through a lot of threads and nothing is helping.
  2. Jolly Giant macrumors 6502a

    Jolly Giant

    Sep 15, 2010
    Hamburg, Germany
  3. balamw Moderator


    Staff Member

    Aug 16, 2005
    New England
    Macs are very picky about booting from legacy OSes (read Windows) on USB. Most of the time it will not work even with rEFIt.

    Either burn it to an optical disc and use that, or look for the "without super drive" thread to find instructions on how to do it using VM software or creating a bootable partition on your internal drive.


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