Erasing all data before selling....

Discussion in 'MacBook' started by wantmba, Oct 23, 2010.

  1. wantmba macrumors newbie

    Sep 25, 2010

    I have a white macbook from April 2008. I need to wipe the memory (while still leaving it with a working operating system, etc), because I'm selling it.

    From what I've read, you need the CD that comes with the computer to do this. Of course, I threw this out a while ago. I do have a CD from my wife's Macbook (also white) from 2009 - but it's the newer one with curved edges.

    Can I use this CD when I wipe my computer? Is there any other easier or safer way to do it?

    Thanks all,
  2. frunkis54 macrumors 65816


    Apr 2, 2009
    If her macbook is the same model it should work but if its a newer model nope. you will need to go to apple and get reinstall disks or purchase a retail copy of SL
  3. eatbacon macrumors regular

    Feb 4, 2003
    Just choosing the "Erase and Install" option when you install will do nothing to protect you from the new owner accessing your data. That simply formats the hard drive, but that does not remove the data from the drive, it simply removes the information used to access the data. It is trivial to recover data from a formatted hard drive.

    What you need to do:
    When booted from the installation disk, before you install (after you select your language), choose Disk Utility from the Utilities menu. Choose to erase the disk from there, but click the security options button and select the option to do at least a 7 pass erase. This will write a series of 0s and 1s over your data seven times, making it virtually impossible to recover. The single pass will likely be enough to stop the casual observer, but why not use the extra security. This process will likely take a few hours. Once it is done, do the install as normal.

    EDIT: I realize this doesn't answer your question about using your wife's disk (which is already addressed above) but a snow leopard disk is only $29 and that is a small tax to keep your data safe (especially after oddly throwing away your system disks. didn't you think there might come a time when you wanted to reinstall the os? perhaps, like, when you were going to sell the computer?)
  4. iThinkergoiMac macrumors 68030

    Jan 20, 2010
    My favorite part. Why do people throw these out? Do they expect to never have a single problem that requires them?

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