BIOS Passwords for quite a number of PCs are useless. The main reason for setting an Adminstrative BIOS (or boot-up password) is to prevent unauthorized personnel from using your computer. Yet that doesn't stop the manufacturers making it easy for an any Joe Blow to bypass what is considered by some (mostly newbies, I've seen a few newbies' reaction when someone mentions BIOS password, 4 d3m i7'3 1337) the ultimate PC protection (the BIOS password can easily be defeated by jumpers on motherboards, hence giving the unwanted user full access to your hardware). Everyone knows that the password is stored in CMOS, and if the user is not an egoistical male, he would read the instructions for the motherboard, which clearly state that a particular jumper resets the CMOS, which means that all the data is erased from the chip, the time and HDD information, along with the password (or if you want to be technical, "hashed" password). Once that is done, and some of the BIOS is manually restored, the unwanted user has enough access to do pretty much whatever they want to the machine. (I won't mention trying to crack (or more likely bypass) the windows password)