Password removal procedures:
Depending on the system type,we can classify a lot of different BIOS software removers
but they all depend on one thing: you must have post password login access. That's why it
is better to try the default passwords first. Those are installed by the manufacturer in order to help people that lost their passwords. Here are some defaults:
There are also some bugs on computers, for example: IBM Aptiva will clear the password if you press both mouse buttons during the boot process. Toshiba's laptops can bypass the BIOS password if you press the left shift button on the keyboard while booting. Also, on AMI BIOS, version 1.19 and older , if you hold the END key while booting you will delete all BIOS information and the BIOS boot password.