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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. How to Bypass or Remove a BIOS Password by Removing the CMOS Battery: Anyway, 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 bootup now, you will need to goto "Load BIOS Defaults” in BIOS and save the changes to fix them. If this method didn’t work, try one of the methods below. How to Bypass or Remove a BIOS Password using Software: Note: Because of this applications password cracking abilities, some antivirus software may report it as a virus/trojan. This is a false positive. To start using !BIOS, reboot your computer and take note of the BIOS type and version you are running. For example, If your motherboard uses Award BIOS you should look for the text "Award Medallion BIOS 6.0″ or something similar. Download !BIOS from here and save it to your desktop. Then, open a DOS command windows by going toStart > Run and type: cmd Once you see a black screen in front of you, type: cd desktop Now type the name of the file you just downloaded, if you haven’t changed the name just type in: bios320.exe
You should now see a menu asking what you want to crack, in most cases its the Supervisor or System Passwords you want to crack, so press the 1 key on your keyboard. It will then show you another menu asking how you want it to be cracked. Option 1 is pretty good so try that first by pressing the 1 key on your keyboard. You should now have your BIOS password. Reboot the computer, enter the BIOS and try it out. How to Bypass or Remove a BIOS Password using the manufacturer backdoor password: On many computers (especially old ones), computer manufacturers build in backdoor passwords for their own technicians to use so they can access the BIOS when the hardware is being serviced. Here are some of the ones that have been reported. You may need to try quite a few passwords before you find one that works These passwords are CaSe SeNsItIve. AMI BIOS Backdoor Passwords:
Award BIOS Backdoor Passwords:
Russian Award BIOS Passwords: Phoenix Backdoor BIOS Passwords:
Other Manufcaturers Backdoor Passwords: (manufacturer name – password)
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