Make sure to power down the computer, unplug the power cables, and unplug any USB devices if they are powered. 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. Once you have located it, observe how the latches are holding it. Some computers have this part standing upright.
It should look something like the picture to the right. This should not be performed on Laptops if you are not experienced working with laptop hardware.Īnyway, open up the computer case using a screwdriver and locate the flat, circular and metallic CMOS battery.
If we pull out this battery, the computer will forget a lot of its hardware settings, including its BIOS password. A computer will remember its settings and keep the time even when it is turned off and unplugged because these parts are powered by a small battery inside the computer called a CMOS battery. The simplest way to remove a BIOS password is to simply remove the CMOS battery.
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