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How To Reset, Remove, Clear or Reveal CMOS BIOS Security Password

Posted By Raymond In Category: Computer

Jul
6
2008

There are times that we need to reset the computer’s BIOS security password. Yesterday I was at the local government technical school facility and the person who is in charge of the computer told me that they are not able to reinstall Windows because they are not able to get in the BIOS to set the boot order as it is password protected. The lecturers do not know the password as it is not set by them, but by some unknown student.

Reset BIOS password

The most common way that most of us know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off the battery power, the BIOS/CMOS settings will be erased.

If for some reason you’re unable to reset the computer’s BIOS or CMOS security password by removing the battery or clearing the CMOS jumper (using a laptop), here are few tools which you can try to use it to clear the BIOS password.


Before trying any tools to reset your CMOS password, try using the backdoor or default password listed below. The password are case sensitive. Take note of the small and capital letters.

AMI Backdoor or Default BIOS Passwords
A.M.I.
AAMMMIII
AMI
AMI SW
AMI?SW
AMI_SW
BIOS
CONDO
HEWITT RAND
LKWPETER
MI
Oder
PASSWORD

Award Backdoor or Default BIOS Passwords
589589
589721
595595
598598
1322222
_award
ALFAROME
ALLY
ALLy
aLLy
aLLY
aPAf
award
AWARD PW
AWARD SW
Award SW
AWARD?SW
AWARD?SW
AWARD_PW
AWARD_SW
awkward
AWKWARD
BIOSTAR
CONCAT
condo
Condo
CONDO
d8on
djonet
HLT
HLT
J256
j256
J262
j262
j322
j332
J332
J64
j64
KDD
KDD
lkwpeter
Lkwpeter
LKWPETER
PINT
pint
SER
SKY_FOX
SYXZ
syxz
szyx
TTPTHA
ZAAAADA
ZAAADA
ZAAADA
ZBAAACA
ZBAAACA
ZJAAADC
ZJAAADC

Phoenix Backdoor or Default BIOS Passwords
phoenix

There are actually quite a lot of BIOS password removal tool but be careful on what you’re using as some of it are really old (dated back to 1994). I will recommend you to try some of the newer CMOS password remover or decrypter tool. Good luck!

1. CmosPwd by CGSecurity
Download CMOSPWD tool
- This is probably the most up to date and popular CMOS decryption tool. CmosPwd decrypts password stored in cmos used to access BIOS SETUP. It works with the following BIOSes: ACER/IBM BIOS, AMI BIOS, AMI WinBIOS 2.5, Award 4.5x/4.6x/6.0, Compaq (1992), Compaq (New version), IBM (PS/2, Activa, Thinkpad), Packard Bell, Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107, Phoenix 4 release 6 (User), Gateway Solo – Phoenix 4.0 release 6, Toshiba and Zenith AMI. With CmosPwd, you can also backup, restore and erase/kill cmos. You will have to logged in as administrator, run ioperm -i command and then run cmospwd_win.exe

[ Download CmosPwd 5.0 ]

2. !Bios by eleventh alliance
download !Bios
- !Bios is a tool originally developed for a brute, blunt removal of passwords from BIOSes. Through it�s development it has been severely extended. !Bios can decrypt the passwords used in some most common BIOS (including various bioses/versions by IBM, American Megatrends Inc, Award and Phoenix). !Bios can do crude, brutal attacks (�blasters�) which removes password from a lot of Bioses. A bit dangerous though, can give unexpected and unwanted results.

[ Download !Bios ]

3. PC CMOS Cleaner
Download PC Cmos Cleaner
- PC CMOS Cleaner is an easy-to-use tool to recover, delete, decode and display the superior passwords stored in BIOS whatever the brand is. Most types of BIOS such as AWARD, AMI, Compaq, Phoenix, Samsung, IBM, Compaq, DTK, Thinkpad, Sony, Toshiba are supported. It’s an bootable CD that runs on x86 and x86_64 computers. It can display the superior passwords of the BIOS, remove BIOS password(will set the BIOS to default status, need reset date).

[ Download PC CMOS Cleaner ]


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    • MR7

      Wonderful tip! Some new computers are physically locked with some kind of plastic strap and it can’t be opened because of the warranty. Really, great tip…

    • Ammar

      Thanks Raymond.

      Useful tools.

    • HAFIZ FARHAN

      Raymond i know another way of removing BIOS password by using DOS commands. Should I tell you here.

    • Ishaan

      Hi,
      I prefer the battery method n i don’t wait for 30 minutes only 2-3 minutes do the required job…..
      Thanks

    • griven

      oh….thats after going into debug people

    • chunky

      Another useful tool from Raymond. Thanks

    • bhasidh

      Thank you Ray.

    • Roy Raay

      Thanks for the info and for the PC CMOS Cleaner link cheers mate!

    • digArt

      This post is very useful;
      Thank you very match Raymond

    • jaymanjula

      Hi, HAFIZ FARHAN

      Please mentioned your dos method.

      We really appreciates for it.

      Thanks Raymond for all your amazing useful post for all computer user.

    • Gaara

      Cool tip. Thanks! I’ve been wanting to re-install windows but I just couldn’t access the BIOS to change the boot order.

      …and because it’s a new laptop, I didn’t want to open it up.

      Thanks again.

    • Roslev

      HAFIZ FARHAN

      How do you do the DOS command.
      Have a labtop, my shool , delivered with password.

    • Vu hai

      Can’t use DOS command for unlock password CMOS !
      Simple first boot compuer into screen ask password !
      So all tool unlock pass CMOS is disable !

      the best way is open case and remove battery about 5 minutes !

    • elis

      hi guys.. can you tell me how to run pc cmos cleaner? i realy need this tools.. many thanks

    • elis

      hey guys.. how to run this pc cmos cleaner?? help

    • Amirz

      Raymond, You Reallly Roxxx!!!!! Thanx alot Bro, now i can reset the BiOS password of my laptop. it was so f***king annoying before, but since you have told me about it, no more words anymore but YOU ROXXX!!! again, thx alot Raymond!
      Regards-Amirz

    • Riz

      Thanks a lot Raymond. It’s very usefull for us to use it when have a problem regarding about admin password. I have a wish. Can I use your experience and your opinion in my portal… but i translate it in Malay and i will put your signiture there.. please reply my message. Tq

    • nas

      I am new in computer world. what’s the best way to start learning computer teach from beganing?

    • joseff

      how can u change the bios password without taking out the battery…

    • night owl

      cool tips, just got hold of stolen 20 units of password locked pc’s and now managed to unlock it all, tq

    • edi santoso

      I’ve tried all the software methods, including MD-DOS debug method, for my fujitsu lifebook T4020 but none worked. I have no knowledge to disassemble it – seems complicated and need special tools. Anyone can help me how to reset/clear the bios password on Fujitsu Lifebook T4020? Thanks

    • vishal upadhyay

      hello sir
      i have compaq 6715s laptop. my wireless network is disable from cmos setup. i want to enable it . but i m forget password of setup now what can i do

    • jimwel

      i try to download the pc cmos cleaner 2.0, i burned it to cd using nero but when i put the cd in my laptop it only opens the files in the cd and not the screenshot in your website maybe its not the program i downloaded. the disk contains files for linux. tell me how to use it please. can you send it to my email the right program pccmos cleaner 2.0 if possible?
      thank you in advance.

      jimwel
      explorer5000@yahoo.com

    • arjun

      thanks ray it was really useful tip

    • praveen

      i have forget cmos password in my laptop so i gone to market where i had buy the laptop and he remove the password but also cmos is asking for password and when i enter password it is not excepting and saying press f2 to resume window and i cant save date ,time and also my antivirus is saying you have 365 days of protection from 2 weeks so please help me to remove the cmos of laptop

    • omar

      dove si trova .la datteria .x disativare .bios .nel pc acer 3100.windows xsp

    • JOse

      Pero com hago para utilizar este programa si mi portatil arranca y de una vez me pide contraseña del bios el win no llega a cargar..

    • Amarjit

      I have HP Pavilion XH485 with Phoenix bios 4.0 Release 6.0 which has worked flawlessly for 7 yrs. After running Zone Alarm (and AU Magic), this tme it will NOT boot. My CMOS password does not work. It says “Invalid Password”. How can I bypass the “password” and boot the computer without opening the computer and removing the battery? Thank you.
      Amarjit

    • http://naoresolveumeuproblema dayrion

      cara eu to com um notebook nextera que ta com senha na bios, quando liga nem entra no windows e nao sei mais o que fazer.

    • юрий

      Здраствуйте.подскажите бутьте добры как сбросить настройки биос на изначальные

    • Amarjit

      Still waiting for a reply to reset my CMOS password in HP Pavilion XH485 with Phoenix bios 4.0 Release 6.0, OMNI BOOK XE3 BIOS Version GD.M1.06

      Thank you.

      Amarjit

    • styorms

      hi i used pc cmos cleaner 2.0and it made my life book t4010d in to a brick it went thought the motions there was no try out words to use so went on to the next step used the recommended top option that keeps the time it said all done pass reset now i dont have any thing just a buzzing harddrive and a blank screen,
      help my tablet has some very important data i need any one got any ideas how to get some life back in my lifebook???

    • Skill

      CmosPwd по CGSecurity ——– я с помощью єтой утилиты kill cmos, может кто подскажет утилиту для восстановления cmos???

    • Wiku

      I have the same problem as styorms.Looks like I killed my Lifebook C1110 with cmos cleaner.

    • lusiferca

      jais un pc portable dell et jais pas le mot passe comment faire pour lefacer

    • james

      how to remove or bypass setup password of satellite toshiba a215

    • http://imen medjahed

      Excuser moi se nest pa asser presis
      Et je ne comprend pa car moi je veut plutot changer mon mot de passe de demarrage
      Si vous pouviez mexpliquer sa serait tre jentille

    • Ye Hut Oo

      I’m problem with the CMOS password.My problem is like that.I have the chance to use this computer ,but it was disabled in USB port.And then I can’t remove the CMOS battery.I am thank to this site being I can pass COMS pass word.With Regrad,yhtutoo

    • el TATO

      Hi, i have a BIG BIG problema, the last software dont work with my HP 530 NOtebook.

      What i need to do? I cant enter to SETUP MENU fir the password

    • Eddy

      I burned the pccmos cleaner, but my vaio goes straight to the password promt and it wont read the disc so i can execute the cleaner to reset the password, it defeats the purpose of the cleaner, if the password is asked first, please tell me what to do, this computer is driving me crazy, its a sony vaio pcg r505gl, with a phoenix bios 4.0 release 6, thank you
      ed

    • help !

      HElp me please ! i have no idea where the batterie is or these things called jumpers. do u have a picture of it ?

    • Julia Widdop

      I opened up the machine and couldn\’t see anything that looked like a battery or any jumpers either. I downloaded pccmos cleaner but it\’s a dot iso file and my XP doesn\’t know how to run it. I want to reset by BIOs to the default because I think I messed them up. The computer is refusing to recognize the modem since I re-installed windows XP over Ubuntu.

    • http://forjuliawiddop sergiu

      If it’s has ISO extension it means it’s a CD image. Use Nero or other cd burning software to burn the image on a CD, then boot from that CD and reset the BIOS password.

      Good luck !

    • deza

      two thumbs up

    • http://hi mino

      tenks

    • Dragos

      This tool: PC CMOS Cleaner is very good ! Thanks Alot !

    • http://Bukakke Josep Parra

      The tool ever cut in download. almost 29 mega. please put another link to complete download.

    • Persia

      PC CMOS Cleaner Tool is very useful.
      Thanks.

    • Josh

      thats amazing raymond. thax alot.

    • fisha

      I got a Toshiba Satellite A215 from my friend. he doesnt know the BIOS password and its phoenix edition. i know absolutely nothing about computers and i dont want to ruin this laptop. is there any way anyone can give me step by step instructions on how to do it? i dont have the money to send it to Toshiba and have them do it.

    • tony

      A. By Using the Motherboard Jumper:

      In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.

      Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don’t have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.

      When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.

      Make sure to turn the PC off before opening the cabinet and resetting the jumper.

      B. By Using Software:

      I have found that 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/

    • erkan

      coulld any1 help me here please
      i have toshiba satallite labtop .i have blank screen and blue space asking bios password
      and i cant even do anything couse of this

      could u tell me how to acces this?

    • Grace

      Hi, I have a Sony Vaio VGN-CR320E with a password in the BIOS..I remove the battery and and nothing changed.. I download the PC CMOS Cleanner..but I can not boot from the CD.. what can I do?

    • shraddha

      thank…… remond

    • anthony mclaughlin

      cant find the location of jumper for my advent 9515 can anyone please help me, i’m going crazy……………

    • kadidi

      Hi people!!!!
      How do i remove CMOS password in my Satellite TOshiba?

    • simon

      Hi people please i need help with my PC when i swicth on it give me a massage say invalet option press f1 to setup or press f2 to countinueg

    • khan

      hi everybody.i have aplied the above method of bios power-on password on my hp550,but it did not work ,it could not reset my laptop bios.so please if anyone knows a way to clean my power on password from laptop without opening its case.cz it is new.then please inform me by my e-mail.i will be thankful
      i have used pccmos cleaner iso.but failed to work out
      kifayat_sam@hotmail.com
      my bios type is f.00

    • Nghiem

      Hi all,
      All of solutions, you have post on this page i think it not true and was not working. I had tried but not work because if u forgot pwd so you could not change option to boot from CD/DVD. You have to enter a password which you forgot. So anything you said, it’s wrong.
      Thank you anyway,

    • Dan

      Some newer laptops, such as sony laptop pcg-r505gl, can have a bios password setup so that when the laptop boots, it goes right to the password request. You can NOT use ANY of the above password crackers on this site because you CAN NOT boot past BIOS into DOS, and you can NOT boot from a CDR. I have removed the CMOS battery for more than a DAY and it does NOT reset BIOS. I am reading that some laptop BIOSes can have the passwords FLASHED to a ROM CHIP, therefore you can NOT bypass this security measure without professional help…that means you MIGHT have to send the laptop back to Sony and it currently cost $250 for the manufacturer to fix this. Here’s the “kicker”, you have to supply the proof of purchase, and that will be hard to do if you bought your laptop at a yardsale or fleamarket….

    • bhargav

      i need u bios passward bacause i forget my laptop passwrad.so i need u recover u my my passward.so plz give me some guide…….

    • http://www.kashmiruniversity.net sameer misger

      hats off man,,,,gr8 work

    • VTCmobilecomhn

      I’ve rec a Toshiba A215-S5818 Laptop. When I Pw on. It rep Enter Password…. So, Not in to Windows…
      I press F2 for in to Bios or F12 for Boot It’s display the same. Hefp me soon. I live in HaNoi, VietNam. Thaks alot Everyone.

    • 55555

      i have an acer 7740g-6969 (two months old)/ $1399 CAD

      i and my firend know the bios password, however
      the password that we know dosent work> ironicly it stopped working for the last two days and no one changed it because she and i are the only people who use it.

      Can any one tell me what type of bios password it has

    • Sudhan

      Any method to get it live into a USB stick?

    • http://Hello saknamfit

      Hi! i have an acer 4810T

      i forgot the bios password, however it stopped working for the last two weeks and Primary slave Hitachi HTS545032B9A is Locked.
      when I continues to press enter again and again the computer ask me to ” enter unlock password (key: 70099202)?” like this.

      Can any one tell me what to do please.

    • mohamed

      forget the passord of the toshiba laptop A33

    • ram

      hi i have ed500 x-note laptop i forget my bios password i want to what i do?

    • daniyal

      I have apple powerbookG4 and i forgot it’s Bios Password.
      Does anybody know, how to reset or clear the BIOS password from Apple Laptops?

    • SPM

      Dan,
      What you have told is correct… We cannot reset BIOS passwords in the latest versions of laptops…

    • Widodo

      makasih

    • Sudhan
    • earl of azeroth

      howdy. my friend gave me his old compaq presario cq40 and just told me to reformat it to make it brandnew but it seems he forgot to tell me his bios admin password therefore i cant reformat it. can u help me on this? i tried to call my friend he gave me a lot of passwords but it never works. :(

    • chris

      No beans on HP compaq 6710b, the other tools plain didnt work, and the last one showed nothing under the “possible passwords” list and the reset tool didnt work., neither did removing the button cell and battery, wth.

    • Dioen Marie

      hi.. i have a sony vaio PCG-505AGL. needs to reset the bios password and windows xp is corruptted. cant do anything with the laptop. please help me with this.

    • Dioen Marie

      hi.. i have a sony vaio PCG-505AGL. needs to reset the bios password and windows xp is corruptted. cant do anything with the laptop. please help me with this. here my email: dioeney_12@yahoo.com

    • http://www.thepassworddoctor.com Carl Etchfield

      I have been reading this page after page and cannot find my way around my dell laptop bios password.. I just got fed up in the end and paid 20 bucks to ThePasswordDoctor and they send me their code instantly! But thank you for giving me a rough idea of what I was doing!
      Carl

    • Graham Magee

      hi, I have recently experianced a
      HARDDISK SECURITY PRIMARY SLAVE HITACHI HTS545032B9ALOCK
      MESSAGE COME UP ON MY ACER LAPTOP AND STOPS THE MACHINE STARTING UP.
      HAVE YOU ANY IDEAS WHAT I CAN DO TO FIX THIS PROBLEM?

    • http://noreddine-laptop@hotmail.com mesdova

      send for unlock password bios laptop 10$

    • MD.ALI NEWAZ KHAN

      I ALREADY TRY PC CMOS CLEANER 2.0 IN MY LAPTOP ASUS 1005PX BUY THERE IS AN ERROR LIKE “INVALID LOOP LOCATION” WHEN I BOOT THIS CLEANER DISK THIS PROBLEM APPEARED SO THAT I CAN’T REMOVE MY BIOS PASSWORD.PLS……TELL ME SOLUTION

    • http://www.facebook.com/people/John-Kay/1324337187 John Kay

      i have a HP desktop pentium 3 computer. when i press F2 on startup to enter setup for cmos it asks for password. how can i crack it

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