Break a BIOS Password

Have you ever been locked out of an old computer by a forgotten BIOS password? There's no need to get frustrated. It is relatively easy to bypass this safeguard and log on your system.

Follow the steps to do it.

Power off the computer and make sure that it is unplugged.


Open up your computer case. You need physical access to the motherboard to complete this procedure.

Find a circular, (mostly) silver metallic object on the motherboard. This is the CMOS battery.




CAREFULLY remove the CMOS battery, avoid touching it with your fingers, and leave it out for about 120 seconds. This will flush the CMOS memory which stores the BIOS password and all other configuration.

Set the battery back into place and power on the computer.

The computer should then warn you that the CMOS configuration could not be found. You can either reconfigure it yourself or restore defaults. Restoring the default configuration should be fine.

You will notice that the BIOS password has been cleared and you can boot without it. You may reset the BIOS password to something else by going into the BIOS configuration and setting a new User Password (The Supervisor Password controls access to the BIOS, NOT the computer!)

Follow the below steps for Laptops
Remember that laptops can be trickier, especially if it's a newer model. If it has a security chip on the motherboard forget about it. You either have to physically remove the chip or contact the mfg for the "master" password. If you can boot up off of a cd or floppy try any of these methods:

Create a Win98SE bootable media "or anything that lets you boot into MS-DOS" and boot off of it.


When the A:\> prompt appears type debug and press enter.



You will then only see a "-".


Type o 70 2E "include the spaces" and press Enter.

Type o 71 ff "include the spaces" and press Enter.

Type q and press Enter.


Here are a list of common mfg backdoor passwords

  • AWARD BIOS
    • AWARD SW, AWARD_SW, Award SW, AWARD PW, _award, awkward, J64, j256, j262, j332, j322, 01322222, 589589, 589721, 595595, 598598, HLT, SER, SKY_FOX, aLLy, aLLY, Condo, CONCAT, TTPTHA, aPAf, HLT, KDD, ZBAAACA, ZAAADA, ZJAAADC, djonet, %øåñòü ïpîáåëîâ%, %äåâÿòü ïpîáåëîâ%
  • AMI BIOS
    • AMI, A.M.I., AMI SW, AMI_SW, BIOS, PASSWORD, HEWITT RAND, Oder

Other passwords you may try (for AMI/AWARD or other BIOSes) - LKWPETER, lkwpeter, BIOSTAR, biostar, BIOSSTAR, biosstar, ALFAROME, Syxz, Wodj gvs

Dell XPS M1210 = xceaxn05

Note:-
  • If you looking for Sony PCG Series BIOS Master Password try this one: http://elektrotanya.com/?q=hu/content/sony-pcg-series-bios-master-password
  • Depending on the manufacturer of your motherboard, you may be able to use what it is called a "backdoor password" to bypass the password problem. Try looking at the external links for possible passwords.
  • Remember that passwords are Case Sensitive. The last two passwords in the AWARD BIOS list are in Russian.
  • Sometimes the bios reset jumper has a "handle" and is colored a bright color to make it easy to locate. Also, look in your case near the bottom. If it is a manufactured computer then it probably came with a little sticker with the jumpers and the location of the reset jumper.
  • If you're really stuck, the PC manufacturer can often give out a "reset password" if you can prove you are the owner. This works with Dell but they usually charge.

B. By Using Software:

BIOS/CMOS Password Recovery Tool is the most effective.: BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds
BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/























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