Unable to see my bootable usb/external HDD from boot menu

Discussion in 'Windows, Linux & Others on the Mac' started by Si777, Aug 13, 2014.

  1. Si777 macrumors newbie

    Joined:
    May 19, 2014
    #1
    Hey guys wondering if you could help me...

    I'm trying to put windows back on my system (windows7 home pre) and I have created a bootable drive via boot camp then within boot camp I hit the install windows 7 or later version... I already have the latest support software downloaded on another usb.

    So this all goes fine but when the computer reboots I get a black screen saying no bootable disk, insert a bootable device and press any key. I do this and get nothing.

    So I restart and hold down the alt/option key whilst its booting and my bootable usb doesn't show up. I only get my mac and a recovery disk.

    Any ideas?

    Thanks in advance
     
  2. Gjwilly macrumors 68030

    Joined:
    May 1, 2011
    Location:
    SF Bay Area
    #2
    Which Mac is it?
    If it's one that comes with an optical drive you will not be able to install from a USB drive.
    You will have to use the optical drive.
     
  3. Si777 thread starter macrumors newbie

    Joined:
    May 19, 2014
    #3
    Hey... is imac mid 10 27" and yes it did come with a optical drive and still has it in there.

    I've tested out and played some random CD's etc and they worked fine... however when I run the bootcamp process and it tells me to insert disc it spits it back out. I have tried the official disk and also a burned iso image but they just get spat out after 30 secs or so.


    Also I have managed to install windows 8 on this system via usb or a external hdd and also think I installed windows 7 as well (too far back and cant remember how I did it).
     

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