Selling Mac

Discussion in 'Buying Tips and Advice' started by Damonr, Jul 26, 2009.

  1. Damonr macrumors newbie

    Jul 26, 2009
    I have just sold my Mac and have completely wiped and re-installed OS. Is this enough to protect the information that was on the HD? I am talking about user names and passwords for email accounts, bank accounts etc?

    Many Thanks

  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    Yes. Re-installing OS will format the HD so all data will be wiped
  3. motulist macrumors 601


    Dec 2, 2003
    That's only true is you've specifically selected the option to reformat the hard drive and write zeros to the disk. This is NOT the default setting. If you don't tell it to write zeros to the disk then it is beyond trivial to recover most of what was already on your disk before.
  4. davidjearly macrumors 68020


    Sep 21, 2006
    Glasgow, Scotland
    It is enough in most cases, but you are always safer to do a 7-pass erase when there are passwords/bank details involved.
  5. chameleon81 macrumors 6502

    May 16, 2006

    7-pass takes forever :).
  6. davidjearly macrumors 68020


    Sep 21, 2006
    Glasgow, Scotland
    Yes, I know but it's not as though you have to sit and watch it.

    It is the safer option, and especially important if you have stored log-in information and banking details.
  7. J&JPolangin macrumors 68030

    Jul 5, 2008
    Thule GL @ the TOW
    ...if you're including the original HDD that you used, 7 pass it as stated above... you could buy the OEM size HDD for cheap and keep your drive if you wanted...
  8. alent1234 macrumors 603

    Jun 19, 2009
    The military intel guys I used to know would open the drives up and destroy the platters with Brillo pads or wire brushes. Did the same when I junked some old hard drives

    my HP laptop has a disk sanitizer option in the bios that takes all night. A regular format leaves all data in place that can be recovered with a free program you download
  9. ag55 macrumors regular

    Jun 14, 2009
    Or you could do a quick format, and then just download tons and tons of files to fill up the disk entirely. :)

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