On a PC, how do I reset or remove the CMOS password?
A CMOS password, if present, is one that you must enter when the computer is booting up. It comes before a network or operating system password. You will not be able to run any programs, view files, or even start the operating system if you do not enter this password.
If you'd like to change the password, you can do so by restarting your
computer and entering the CMOS setup. You usually enter CMOS setup by
typing a certain key or combination of keys as your computer is
booting up; F2, Del, and
Ctrl-Enter are common possibilities. However, your
BIOS should display a line during startup explaining which
key(s) to type to enter setup, BIOS setup, or CMOS setup. There
should be a password option in the setup program. If you are not able
to find this option, you will need to consult the manual that came
with the computer or motherboard.
If you have forgotten your password, you will need to clear it by physically changing jumpers on your motherboard to short out certain pins, thereby erasing the password. The location of these pins varies from motherboard to motherboard, so you will need to refer to your computer or motherboard's manual.
Some motherboards have a default password. For example, the AMI BIOS
default password is AMI. Check your computer or
motherboard manual for the default password. It's worth trying this
password if you don't know or have forgotten the CMOS password.
For some older computers, you must have a reference disk to make changes to the CMOS settings, including the password.
Also see:
Last modified on June 10, 2008.
