how to format external hd after you use it in the time machine ?

Discussion in 'MacBook Pro' started by Luigi Ventura, Apr 3, 2012.

  1. Luigi Ventura macrumors newbie

    Joined:
    Apr 3, 2012
    #1
    installed my 500gb external hard drive (model WD External Media 5000BEV) to use it in the time machine on my macbook pro with mac osx system. Now I dont want the time machine anymore, i want to format it to use it at work. and the system complains: Could not unmount the disk . I've tried almost everything, I do not know what else to do. thanks in advance .
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    What about disabling Time Machine first and/or removing the HDD physically via pulling the cable and the plugging it back again and trying to format it again?
     
  3. njean777 macrumors 6502

    Joined:
    Oct 17, 2009
    #3
    I know it is a crazy method but if you have a windows machine around, you could use g-parted and reformat it that way. I have had to do it a couple of times for times like you are describing.
     
  4. Luigi Ventura, Apr 3, 2012
    Last edited: Apr 3, 2012

    Luigi Ventura thread starter macrumors newbie

    Joined:
    Apr 3, 2012
    #4
    I've done that, did not work.

    I've done that, did not work. I also tried all the functions of Disk Utility. It seems that the HD is locked.
    i will try what njean777 say . and come back to say what happens .
    thanks

    _
    What about disabling Time Machine first and/or removing the HDD physically via pulling the cable and the plugging it back again and trying to format it again?
     

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