Quick format off HDD or write with zeroes?

Discussion in 'Mac OS X Lion (10.7)' started by mnsportsgeek, Jul 20, 2011.

  1. mnsportsgeek macrumors 65832

    Feb 24, 2009
    Hi guys,

    I'm planning on doing a clean install of lion (I just want to start fresh and get rid of the junk on my computer) tonight, and was wondering if I should do a quick format of my drive or take the extra time and have disk utility write zeros on the drive. Is there any benefit?

    Thanks for your help.
  2. mnsportsgeek thread starter macrumors 65832

    Feb 24, 2009
    And if you'd suggest writing zeros over the drive, is 1 pass enough or should I do the full 7?
  3. rmbrown09 macrumors 6502a


    Jan 25, 2010
    Unless you have some weird crazy cactus porn or something you never want anyone to find, do a quick format. The writing multiple times is for security.
  4. ugp macrumors 65816


    Jan 7, 2008
    Inverness, Florida
    Quick Format is fine. Purpose or writing Zeros is to remove all data. Data really isn't gone until it's written over by something else. The more times you write Zeros over the less chance someone has to recover your data. Nothing really performance wise to this to be noticeable.
  5. mnsportsgeek thread starter macrumors 65832

    Feb 24, 2009
    I did some light reading on the topic and hear that writing zeros will remove bad sectors. Is this true? And if so, how beneficial is it?

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