I sold my macbook yesterday and I'm pretty sure it was formated correctly What I did was I inserted the OSX disc, rebooted and waited for the mac osx setup to start from the disc. After selecting english as my main language I launced disk utility from the task bar. I choose to "'Erase" The entire drive which took a few seconds and I ended up with a supposedly blank 160GB drive called "Untitled" My question is was this done correctly? I reinstalled OSX on this "Untitled" drive and after a reboot the introduction movie started rolling. It didn't seem to have saved any of my info as it was asking to setup a new account etc... I'm just a bit confused because it takes quit a while longer to format a drive on windows and this just seemed too easy? Has it deleted all data and freshly installed osx? or will the new buyer still find all my safari bookmarks and random files on the machine?