Windows XP/2000 - [Answered] Uncrackable Computer Password? posted in the Operating Systems forums; It's certainly the most common method, although there are others: http://www.tech-faq.com/reset-bios-password.shtml...
You can create an MD5 encrypted password using my tool here. I forgot MD5 encrypted words were so long, if you do use it it would be useful to write it down.