I have a 2011 MacBook Pro, and I want to install Win7 on it. I have a Windows 7 SP1 Ultimate (64 Bit) iso file and an 8GB USB Flash drive. I've tried several ways of putting in the ISO file on the Flash drive, but I always end up with the drive formatted as UDF, which seems to be not bootable from my mac. I've seen that Microsoft has a tool to put the iso on an USB drive "Windows USB/DVD Download Tool" but I have no Windows machine to run that from. Could anyone help me with a workaround? Thanks!

1 Answer 1


If MacOS is still there, why don't you try to install Win7 using Bootcamp? https://support.apple.com/en-us/HT205016

Would like to put this in a comment but SU is still reconciling my profiles so as of now I've only 11 reputation points :(

  • Because I'm truly dumb, apparently :) . I did read the instructions, and thought I've done it thoroughly, but I did not read the crucial "An authentic Microsoft Windows full install disc or ISO file of Windows 7 64-bit, Windows 7 32-bit, Windows XP, or Windows Vista." I will try it now and report back.
    – Fede
    Jan 18, 2017 at 18:32
  • Bootcamp does not recognise the (mounted or unmounted) ISO file as the Windows installation disc. So I'm stuck again
    – Fede
    Jan 18, 2017 at 19:04
  • @Fede What about etching the ISO on a DVD and usa that instead of an usb drive?
    – microspino
    Jan 19, 2017 at 7:57
  • Thanks microspino. Unfortunately it was a dead end, BootCampAssistant was never able to produce a bootable USB drive, I tried a lot of different ways, granted I did not try yours, only because I'm not able to get a DVD-R where I live within the time frame I had. In any case I ended up migrating an old installation of Bootcamp with Win7 from an old drive I had lying around using WinClone. As for the reasons why it did not work, I found some reports online that said that the actual "drive" could be the issue, as some brands would work, and some other would not, anything is possible.... Thanks!
    – Fede
    Jan 19, 2017 at 20:12

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