Cannot get 'Disk Utility' to delete failed windows 8.1 install

Discussion in 'Mac Pro' started by Reality4711, Aug 6, 2016.

  1. Reality4711 macrumors 6502

    Reality4711

    Joined:
    Aug 8, 2009
    Location:
    scotland
    #1
    [​IMG]

    This is the second time the install (me) has failed to complete. Last time Opal Computer Systems did it easily. But as it is Saturday does anyone know how to do it?
    All Apple instructions to remove this have been tried (as before).
    Is my only choice a complete wipe and start again? I do hope not. This new 'utility' does not seem as robust as the old one.
    Any help appreciated.

    Regards

    Sharkey
     
  2. Significant1 macrumors 6502

    Joined:
    Dec 20, 2014
    #2
    Though I am sure some disk utility kong fu can do it, You should use bootcamp assistent, both when you want to create and remove a bootcamp partition.
     
  3. filmak macrumors 6502a

    Joined:
    Jun 21, 2012
    Location:
    between earth and heaven
    #3
    Yes, as Significant1 wrote, use bootcamp assistant, it's very easy and the best way to remove it.
     
  4. TonyK macrumors 6502a

    TonyK

    Joined:
    May 24, 2009
  5. buster84 macrumors 6502

    Joined:
    Oct 7, 2013
    #5
    I had the exact same issue on my imac and for the life of me couldn't get it to revert after bootcamp assist failed to remove the partition when i was removing windows. You need to create a Mac usb boot drive of your current version of OSX, of if you plan to downgrade create an older one. Another option is to use restore cds, or a retail snow or lion discs if you happen to have them. Then once your booted up disk utility can now fully unmount your drive and and allow you to reformat it.
     
  6. haralds macrumors 6502

    haralds

    Joined:
    Jan 3, 2014
    Location:
    Silicon Valley, CA
    #6
    Try BootCamp assistant. If I remember correctly, the Recovery HD is relocated by the BootCamp installation and is in the way of recovery. Unfortunately Disk Utility is getting dumber all the time (simpler to use!) You cannot any longer use the Dev mode to see hidden partitions. You have to use HD Util.
     
  7. AidenShaw macrumors P6

    AidenShaw

    Joined:
    Feb 8, 2003
    Location:
    The Peninsula
    #7
    How about booting a Live Linux from CD or a thumb drive? You could then use "gparted" to clean things up.
     
  8. Reality4711 thread starter macrumors 6502

    Reality4711

    Joined:
    Aug 8, 2009
    Location:
    scotland
    #8
    Disk utility does not work when this happens.

    I eventually just user alt. + R and rebuilt the lot.

    Oh and promised my wife on pain of her family visiting never to touch 'W*****s' ever again.

    Just look around and you will find this problem is a plague on society (maybe left by 'S' just to keep us weak willed ones away fro the dark side)

    Anyway all now smooth and silky.

    Regards

    Sharkey
     
  9. Significant1 macrumors 6502

    Joined:
    Dec 20, 2014
    #9
    By disk utility kong fu, I where also considering the diskutil commandline utility. Which is actually what many of the GUI apps like disk utility and bootcamp uses behind the scenes.

    Good you are up and running. Sometimes it is just faster to do a reinstall, than keep fighting some obscure problem.
     

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