lol taking the computer apart wont help you.. and yea the bios is easy, the only reason you'd need the bios in your situation is to cause a fatal error and return the option to boot up in safe mode.. what kind of computer is it? the brand name...
and answer corndog's questions too
i remember the good old days when school's used windows 95/98 on their computers.. you could hack straight into anyones account without the password.. type in Administrator as name, and press ok twice, and click ok on both error boxes you'll get, then just hit ESC.. ACCESS!