Override BIOS setup password

The problem of changing the boot device priority will arise when the bootable disk you have entered into your drive shows no sign of it. The will ask for a password after restart and pressing the corresponding BIOS key (F10,DEL, etc..).
Just remove the small battery found in your motherboard and keep it again.This action will reset the password after which the BIOS setup wont ask for a password when you restart later. It is also possible to set a new password after entering into the BIOS setup.