The complex process explained in detail
How to Remove BIOS Password Using CMOSPWD
As an IT administrator for the past few years, there are times when I go a little overboard with security and do things to lock myself out of a computer. An example is setting a BIOS or CMOS password that I will never remember.
If you forget your BIOS or CMOS password, you’re in quite a bit of trouble, as you won’t even be able to boot into Windows. I’ve previously written about a way to reset a BIOS password using a couple of different techniques , which is the first thing you should try in this situation.
I recently came across another program that you can use to recover a CMOS or BIOS password. CMOSPwd works under Dos, Windows 98, Windows NT, Windows 2000, Windows XP, Windows 2003, Linux, FreeBSD and NetBSD.