c
selling my computer and need to wipe it clean. how do you do this?
thanks
MacBook Air, OS X Mountain Lion (10.8.2)
Welcome to the Apple Support Communities
If your Mac came with Lion or Mountain Lion, press Command, Option and R keys on boot, open Disk Utility, erase the drive and install Mountain Lion or Lion.
If you've a Late 2010 MacBook Air, use the USB disk that came with the Mac to erase the drive and install Mac OS X. If you've got an older Mac, use the USB SuperDrive or Remote Disc > http://support.apple.com/kb/HT2129
