Need help installing windows 7 64 bit on 2009 MBP from USB.

Discussion in 'MacBook Pro' started by JJBro1, Dec 17, 2011.

  1. JJBro1 macrumors regular

    May 17, 2009
    I'm having some trouble installing windows 7 to my MacBook pro mid 2009 model. My optical drive doesn't work so I'm trying to install it from a USB. I have a .iso of windows 7 home professional on my USB. I've installed reFIT and when I booted it up and selected windows it says missing os. What's going on here? What am I doing wrong?
  2. alphaod macrumors Core


    Feb 9, 2008
    You can't. It's not supported on the Mac. Only the MacBook Air supports installing Windows from a USB optical drive and/or USB flash drive.

    You have to use the internal optical drive.
  3. Ccrew macrumors 68020

    Feb 28, 2011

    It's because the machine doesn't see the USB drive with a bootable sector and isn't smart enough to boot from an .iso.

    Here's a primer on how to make a bootable Win7 USB. Fusion will see it on a Mac, but I've personally never tried to boot from one as I only use Windows in VM's
  4. JJBro1 thread starter macrumors regular

    May 17, 2009

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