A BIOS password is a protection measure that can be used to stop
someone powering up a computer system or making changes in some of the
computers most sensitive areas. Many big name computer manufacturers
such as Dell and HP lock the customers out of this area because they
don’t want the customer changing anything and potentially damaging the
machine (which the manufacturer may have to warranty). However, when
someone like a computer technician or hardware enthusiast needs to make
some hardware changes to the computer, they will need to access the
BIOS. Here are some methods to bypass or remove a BIOS password.
NOTE: Do not try to guess the password on a pass worded Hard Drive. 3
wrong guesses will often result in the information on the hard drive
being lost forever.
How to Bypass or Remove a BIOS Password by Removing the CMOS Battery:
The simplest way to remove a BIOS password is to simply remove the CMOS
battery. A computer will remember its settings and keep the time even
when it is turned off and unplugged because these parts are powered by
small battery inside the computer called a CMOS battery. If we pull out
this battery, the computer will forget a lot of its hardware settings,
including its BIOS password. This should not be performed on Laptops if
you are not experienced working with laptop hardware.
open up the computer case using a screw driver and locate the flat,
circular and metallic CMOS battery. It should look something like the
picture to the right. Some computers have this part standing upright.
Once you have located it, observe how the latches are holding it.
There are many different ways to remove a CMOS battery but the most
common way on newer computers can be seen in the picture below.
Make sure to power down the computer, unplug the power cables and
unplug any USB devices if they are powered. The computer must not be
able to get power from anywhere for this to work. Take out the CMOS
battery and wait 10 – 25 minutes before putting it back in. The reason
for this wait is because the computer can still store power in its
capacitors even though everything is unplugged. The waiting period
allows enough time for them to discharge.
Plug everything back in, power up the computer and enter the BIOS
again. If everything went well there should be no more password. In
some cases, if you get weird error messages during boot up now, you will
need to go to “Load BIOS Defaults” in BIOS and save the changes to fix
Please rate me if this solution works for you
Thanks......Have a great time.