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Disc Utility issue - trying to erase hdd, but erase tab is greyed out?

Discussion in 'OS X Mountain Lion (10.8)' started by Whackintosh, Apr 11, 2013.

  1. macrumors 6502

    Does anyone know what I can do. I'm selecting my full 1TB drive and "erase", naming options etc are greyed out. Same thing is happening if I select Macintosh HD. Not sure what to do?
  2. macrumors 6502a


    If this is your start up disk, you won't be able to erase it.
  3. macrumors 6502

    Ah. In that case, how do I erase all files and personal info?
  4. macrumors 6502a


    I suggest that you create a new admin account. Then you can securely erase your user account from within the new account.
  5. macrumors 6502

    That's more work than I'd expected it to require, but it makes sense. Thanks!
  6. macrumors 6502

    Worked perfectly. Thanks for your help, Satori!

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