[Help - Hardware] BIOS restore

do any of you know how to restore passwords to their default in bios or access a computer without using passwords. during bootup i'm asked to provide administrative password which i don't know. i'll admit it i changed a households computers passwords in the setup options at the boot menu a awhile ago and then forgot what they were because i hadn't used it in along time and the password was wordy ... the computer is a dell latitude E6400

the system and administrative passwords were required to log onto my computer ugh

 

You can either:

A) Remove the CMOS battery similar to resetting BIOS on a desktop mainboard (which probably not work since BIOS laptop usually stored their setting on nonvolatile chip and harder to be wipe out just removing the voltage on the chip/shorting pins)

or

B) If that method didn't reset the password, you either call the Dell Service Centre which require you to proof the ownership of the laptop along with your Service tag and serial number or find third party programs/bypass method which some them will or will not work.

Good Luck.

Refer to your motherboard manual. Usually there's a jumper for CMOS reset.

If its locked with an password and you can't boot without it i'dd suggest youd get it cracked or you could buy a new motherboard :D