"A BIOS password is a protection measure that can be used to stop someone powering up a computer system or making changes in the computers most sensitive areas. Many big name computer manufacturers such as Dell and HP lock their customers out of this area because they don't want the customer changing anything and potentially damaging the machine (which the manufacturer may have to warranty). However, when someone like a computer technician or hardware enthusiast needs to make some hardware changes to the computer, they may need to access the BIOS. Here are some methods to bypass or remove a BIOS password."