Using Kon-Boot from a USB Flash Drive: Bypass those pesky Windows and Linux login passwords completely
Good visual aid for the recently updated kon-boot over at http://www.irongeek.com/i.php?page=security/kon-boot-from-usb

Good visual aid for the recently updated kon-boot over at http://www.irongeek.com/i.php?page=security/kon-boot-from-usb