The use of this guide can be one of the following reasons, either you have forgotten your BIOS password or you have a computer to repair that have a BIOS password that need to be reset.
To do so we need Linux liveCD, I prefer GParted because it is lightweight and has the required packages, Of course if you prefer another distribution just make sure that the commands “modprobe / dd” are fully operational.
Download and create bootable CD from GParted website:
Load the system and open the Terminal now run this commands:
modprobe nvram dd if=/dev/zero of=/dev/nvram
Then reboot the PC.
It should reset the CMOS memory on most BIOS systems.