It uses a special recovery partition on the computer, when you boot up you can press an F key to goto recovery menus, it would be F8 or F11, maybe different one on different brands but usually F8, they dont tend to send recovery DVD's anymore as can all be done on the drive, just be careful cause when using recovery it will delete all your music, docs etc & take it back to as new, so always backup your data regularly with a usb drve or NAS over network incase you have to recover to new then you dont lose data, daily backup if anythings changed since day before is advisable.
