how can i remove BIOS password of my HP Laptop? (details inside)

hello guys,
the situation of the laptop is that somehow the window was corrupted in my laptop and when i tried to reinstall it, i had to go to BIOS setup to change the first boot device to cd rom. but when I pressed DEL to goto BIOS setup, it asked me for password.

Now the thing is that i can login to my windows but i cannot enter BIOS setup to change any settings there.

I dont know what kind of password is this? is it CMOS Password or is it Supervisor BIOS password?

details of my HP are,
HP Compaq 6730b
S/N: CNU91339JY
P/N: GW687AV
BIOS: Energy Star

please help me resetting it. I know it wont be romoved by clearing CMOS Battery, and it doesnt work for new machines. 🙁