Booting MacBook with Windows USB Disk

Discussion in 'MacBook Pro' started by Radiating, Jan 18, 2013.

  1. Radiating macrumors 65816

    Dec 29, 2011
    I'd like to boot my mac into windows bootcamp with a USB drive, but while holding down the option key and going into the system picker it doesn't show my USB drive as an option.

    The partition is active, and bootable (it's a hard drive ripped from my old computer mounted on a USB interface).

    My third party USB CD drive boots the windows CD just fine.

    What can I do to get it working and booted?
  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    That won't work directly as the Mac uses EFI to boot. You might be able to get it working using Refit.
  3. LeeM macrumors 6502a

    Jan 1, 2012
    i read something about windows restarting the usb ports during startup
  4. Radiating thread starter macrumors 65816

    Dec 29, 2011
    I was able to get it working by plugging in the USB drive when the system picker started. It would not work if the drive was plugged in before the computer started.

    Other than that it booted just fine, except that it blue screened as soon as it tried to load windows due to incorrect drivers.

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