How to: Complete Factory reset external HD

Discussion in 'MacBook Pro' started by Macinstache, Nov 21, 2013.

  1. Macinstache macrumors member

    Sep 16, 2013
    I had an issue with my Time Machine backups when I upgraded to Mavericks. Essentially my Time Machine would no longer make backups so I decided to send all my old backups to the trash and create a brand new initial backup.

    When I try to Empty Trash with the old backups in it I keep getting an alert asking if I want to get rid of "Locked items". I always choose to get rid of everything, have even tried "secure trash empty" but still doesn't remove these files.

    I'm to the point now that I plan to move all of my other data (files, movies etc.) on to a different HD and want to completely wipe the one with the the 'stuck' backups on it. How do I go about wiping this HD clean?
  2. BrianBaughn macrumors 603


    Feb 13, 2011
    Baltimore, Maryland
    Reformat it using Disk Utility.

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