Crack Dell Bios Password Laptop

Posted By admin On 29.11.20

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Crack Dell Bios Password Laptop Windows 7

Aug 16, 2019 Some of the popular BIOS password cracking software are used like CmosPwd and Kioskea Method 4: Use Backdoor BIOS password Backdoor BIOS password is a set of passwords, which are master passwords provided by BIOS Vendor. These passwords are generic, and they are specific to. They have up to 10 different possibilities for algorithm based on dell laptop with service tag ending in: 1f5a, 1d3b, 1f66, 6ff1, 3a5b, 595B, 2a7b, Also Dell error: system disable, unlock key hint. After entering the correct password, make sure that your BIOS settings are correct so that you won't be locked out again. Unlike the methods below, entering the backdoor password will not reset your BIOS settings.

Possible Duplicate:
Reset or remove the BIOS password on my laptop

I forgot the BIOS password for my laptop (Dell). I have to enter the password before my computer boots. What can I do to get access to my laptop again?

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marked as duplicate by random♦Aug 14 '10 at 4:37

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migrated from stackoverflow.comJul 3 '10 at 17:30

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2 Answers

Contact Dell Technical Support. After proving ownership of the machine, they can give you a master password to unlock your laptop.

William LearaWilliam Leara

I know some methods.

The best and easiest method: Open you computer box, take out the CMOS battery from the mainboard. The BIOS password will be reset to blank.
Follow some hard tutorials, it is difficult to do. It is easier if you are a expert. For example this tutorial: Bypass BIOS Password or Crack CMOS Password?
Use the BIOS password recovery tool, but that is not free!

So I would suggest you the first method. I hope it helps.

Peter Mortensen

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susanamisusanami

Any amateur computer technician should know how to reset BIOS passwords that can be setup from within the BIOS because there are times when they need access to change some configuration options such as the boot order or disable functions like AHCI mode. If a password has been set, you cannot enter the BIOS or sometimes even boot the computer itself unless you know it, and this can be a real headache if nobody knows what the password is. It’s becoming increasingly common due to the amount of computers changing hands these days and previous owners have set a password and not passed on that information.

The most common way that most of us know for resetting or clearing the BIOS password is to physically remove the power from the computer by disconnecting all cables and removing the battery from the motherboard for a few minutes. Another way is to short the clear CMOS jumper on the motherboard itself if one is present. These methods work because on most desktop and a few laptop motherboards, a battery is used to sustain the BIOS/CMOS settings. By cutting off the power, the BIOS/CMOS settings and password will be erased.

If for some reason you’re unable to reset the computer’s BIOS security password by removing the battery or clearing the CMOS jumper, and you don’t know what the password is, here are several options which you can try out to clear it.

Generic Backdoor Default Passwords

Before using any tools that try to reset or make changes to your BIOS, it’s worth seeing if any of the well known backdoor or default passwords that have been around for some time work. Click on the link below to view the list, the passwords are case sensitive.

View BIOS Default Backdoor Passwords

If you can Boot into Windows

CMOS De-Animator is an up to date tool compared to the majority of BIOS hacking/resetting tools out there, and can reset the BIOS password from within Windows. The latest version 2 executable of CMOS De-Animator is compatible with both 32-bit and 64-bit operating systems.

All you need to do is run the tool as administrator (right click -> “Run as administrator”) and click the Proceed button followed by restarting the computer. When your computer boots up, you should see a CMOS checksum error where it allows you to access the BIOS without a password. CMOS De-Animator works by invalidating the checksum of your system’s CMOS memory which resets all settings to default and clears any stored BIOS passwords upon reboot.

CMOS De-Animator also has a basic backup and restore option to give you that extra little bit of added security, the file will be stored with a .dea extension. Do take note of the authors warnings about the problematic nature of using the program on laptops and that usage of CMOS De-Animator is at your own risk. Because of its nature the program will sometimes trigger false positives in antivirus software and on sites like Virus Total.

Download CMOS De-Animator

If you Cannot Boot From Hard Drive or CD

Although disconnecting the power and removing the battery from the motherboard on desktop computers for a few minutes should remove the password, this is much less likely to work on laptops, but it’s still possible on some older models. For extra security the passwords for laptops are usually stored on a separate EEPROM chip which doesn’t rely on the BIOS battery and is unaffected by cutting the power.

If you enter the wrong password a few times on a laptop, there will be a message that the laptop is locked. You will be presented with something like a “System Disabled” or “Password check failed. System Halted” message with some numbers. If this message appears while entering the BIOS you can simply power off and on the computer to remove it and try again. Take note of the number because it’s a valuable piece of information and required to generate the BIOS backdoor password to get back into the laptop.

All you need to do is to have the number to hand and then visit the BIOS Master Password Generator webpage. This website has been setup to let you easily get the possible passwords based on the number entered, simply enter it and press the button. Then look at the results and note all the passwords which are close to your model of laptop.

Try the codes on the locked BIOS message to see if it works, depending on laptop models you may need to press Enter or Ctrl+Enter after entering the code. The codes used are based on the work of “Dogbert” who’s done a lot of research and created a number of small utilities and also Python scripts for unlocking several different brands of laptop.

If the website above or its codes don’t work, visit Dogbert’s Blog where you will be able to find more details about your laptop brand and download a separate master password utility for it. To use one of the programs, simply download the correct one for your laptop and run it, then type in the number and hit enter. The master password will be displayed for you to try and unlock the computer.

You have to run the master password tool on a computer that can boot into Windows and has .NET installed. If you don’t know which tool to use, it’s safe to try all of them until you find the one that matches your laptop.

There are a number of other reset BIOS password solutions on page 2.

12Next › View All

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Reset Windows User Account by Removing Forgotten PasswordBackdoor to Reset Administrator Password or Add New User in Windows 7How To Remove Avast or AVG Authorization Password5 Ways to Change Windows User Password Without Knowing Current PasswordUse Kon-Boot to Login to Windows Without Knowing or Changing the Current Password

“The most common way that most of us know for resetting or clearing the BIOS password is to physically remove the power from the computer by disconnecting all cables and removing the battery from the motherboard for a few minutes. Another way is to short the clear CMOS jumper on the motherboard itself if one is present. These methods work because on most desktop and a few laptop motherboards, a battery is used to sustain the BIOS/CMOS settings. By cutting off the power, the BIOS/CMOS settings and password will be erased.”

That hasn’t been true for about 10 years or so. It was too easy, so the industry found other ways to safeguard the passwords.

If your laptop is older than about 10 years, it’s worth trying.

HAL9000 Author1 month ago

Doesn’t matter how old it is, it’s still probably the most commonly known method of trying to reset the BIOS password, irrespective of whether it still works or not.

What is password for DEBUG.zip???

HAL9000 Author3 months ago

It’s now on the download page, sorry, that one slipped us by…

Larger organizations usually divide the cash book into two parts: the which records all cash payments, and the cash receipts journal, which records all cash received into the business. The cash disbursement journal would include items such as payments made to vendors to reduce, and the cash receipts journal would include items such as payments made by customers on outstanding or cash sales. /cash-book-pdf.html.

Hi Raymond,

Are you sure that Debug command above with
-O 70 2E
-O 71 FF
QUIT

Could unlock BIOS Supervisor Password on Lenovo T440s ?

bubble11 months ago

Thank you very mhch，The stale computer finally can run, see the benefit of your approach，I am a foreigner, did not understand English, little by little，Very thank you for your article

Hello I suffer alto on my Dell inspiron 15
Thank issue is I forgot the BIOS password can you help me plz

Leza1 year ago

I cant get in my admin account even tho its mine i got my laptop 2nd hand so didt get a disk but iv noticed repairing my comp my sound as stopped drivers need reinstalling im unable do iv noticed downloading isnt always dloading ,Windows help pops up ? Can you recoment wot i try …….

I just removed battery and CMOS and it worked perfectly. Thanks

Teews3 months ago

That doesn’t work on this “win 7 home premium eMachines desktop pc”, had to jump the cmos by moving the cover on the 3 pins.Since a piece of plastic on that cover thing broke off! , not wanting to move it again. Re-installed windows 7 home prem.from cd’s and havent found the BIOS update anymore… all after Windows 10 upgrade that was great until it’s last updates that sends me to the Store to purchase what it takes out by deny access to roll back their drivers and then the store offered me to but a new pc… MSFT still doing what they do except you have to still buy a new pc!

Hi please help i’m unable to download debug.exe, the connection just times out, is there another alternative link i can use

Lisa1 year ago

My BIOS password is fine but hackers changed access level to user and created a user password that I can’t figure out. They also partitioned my C drive and moved everything to that new file. I need to get access to CMOS using a DOS command if possible. Using the boot drive they created, which is no longer full of theyre crap, I can access Windows dir. Is there any way to changeable CMOS user info through the commands?

My understanding of your problem is you have a user account you cannot access and your partitions are not setup properly. This has nothing to do with CMOS, however. Using a boot disk for another operating system, backup all of your personal files, reinstall windows and then restore your personal files. There are several tricks you can use to gain user access to the system, the most notable being the sticky keys method. If sticky keys is enabled on your machine this should work. First, go to the system32 directory in the windows system files, from an OS boot disk where you can access the windows drive. you have to rename the sethc.exe to something else (Dont delete it) and then make a copy of cmd.exe and rename it to sethc.exe. Once this is done boot into windows and press shift 5 times to bring up a console, where you can use the net user command to create a new user or change the password.

xaris1 year ago

WARNING: Some BIOS configurations will lock you out of the system completely if you type in an incorrect password more than 3 times. Read your manufacturers documentation for the BIOS setting before you begin typing in passwords.

I did a BIOS reset using the .BIO files.But it is still asking for BIOS password.I tried every other method available on the internet but each in vain…What should I do???

Notpil2 years ago

Lenovo T460s has a Supervisor password (unknown) and the CMOS battery had also died. Obviously now I am being prompted for basic time date etc but cannot change anything because I don’t have the Supervisor Password. I have been told by several people that I am up for another motherboard – is this true – is there no other option here … that is crazy!

Have you had a solution to this as I have the same problem

russ2 years ago

leave cmos battery out, take battery off leave for half an hour to an out with no power then put coms battery in the main battery in and boot should have no password then. work 65% of the time some time batteries need to be out longer.

I also have the same problem, did you find any solution for this?

Bright3 years ago

Thanks now it possible to enter in boot sequence

finally i found easy solution how to remove bios password without any program and i wrote it on acer page you can guys see there:
community.acer.com/t5/Legacy-Laptops-and-Netbooks/acer-aspire-unlocked-bios/m-p/429008#M68532

malc3 years ago

Page has been removed by Acer.

Hmm – any clues please !

hi there: after Reading a lot of web pages, I´m at a dead end. My vaio laptop has a bios password and, if I type the passoword three times wrong, appears one time password, then three times wrong again, appears “system disabled” but without any number.
What can I do?
Thanks!

kaki3 years ago

what’s the solution please?

Tks again for this tips Raymond.

Benjamin E. Nichols4 years ago

Heres a good bios password cracker than works guys! and its cheap!
bios-passcrack.org

After a long study of these solutions and a scouring of the internet, I have concluded that there is no solution for the newer laptops such as the Dell Latitude E5520. None of the code-generators nor the bios-flashing applications work on these.

We need a new solution.

Tony Joseph5 years ago

I have a Lenovo Ideapad Z560 with InsydeH2O Bios and I have forgot its Bios Password, which was set four years ago. I cannot login to the windows because it is corrupted. But I can select the boot device priority from the bios by pressing F12 Key.There is no alphanumeric code displayed, when password is wrongly entered. Is there any way to flash this bios and remove its password? I tried several methods, and fed up with all of the methods. Can you please help me?

Hello i have a samsung NC215P/NC213P, and i have tried to flash the bios to change the image on the startup page, but it wont go away, pls , what do i do i need your help,

erwin5 years ago

i have an asus notebook with a bios password problem i tried the cmos battery removal.didn’t work, tried to disassemble the notebook…didn’t work it still ask for a password, went to geek squad they say buy a new notebook…is there really no way to over the bios password?

If none of the methods here work, a last resort would be to try and get another BIOS EPROM chip but not all laptops allow for this and it depends if your laptop uses two chips for the BIOS/CMOS or one.

Zaven5 years ago

Thanks….

PC CMOS Link not working. Please fix it. TIA

HAL9000 Author5 years ago

Thanks for the report, the official site for the program has died now so we have hosted the file ourselves, use the same link above.

Thanks….

raymond5 years ago

having spent weeks trying all sorts, i came across Raymond, and said to myself give him a go and what a RESULT, even packard bell fell short.
Raymond, thank you so much, have a GOOD LIFE.

Thanks for posting this nice lesson on your site.I was able to unlock my Acer laptop by reading and following the instruction on you website.At first,I though youtude could have help me but I tried as much I could and nothing like help I was able to get.But unfortunately,I was able to reach you site and my problems were able to be solved. Thanks

nathan6 years ago

this worked for me, used bios-pw.org as referenced in this blog from Raymond.
thank you

New version of CMOS De-Animator has been published:

boginjr.com/it/sw/dev/de-cmos3/

Stephen Highzeek6 years ago

I’m having Bios issues , my laptop screen displays Service Tag and requests System or Administrator password… My Bios doesn’t support Cd and flash options… I’ve tried removing the Cmos and resetting the Jumper. Tried all the master passwords. Still no luck. And most of all the engineers here can’t fix it… The ones who claim they can are charging a fee too high or half the price of getting a Used laptop. Its a Dell vostro 1540

Hats off man. Great work

shraddha7 years ago

Thanks Raymond

That is amazing Raymond. Thanks a lot.

Persia7 years ago

PC CMOS Cleaner Tool is very useful.
Thanks.

This tool: PC CMOS Cleaner is very good ! Thanks a lot !

mino7 years ago

Thanks

two thumbs up

arjun8 years ago

thanks ray it was really useful tip

Raymond, You Really Rock!!!!! Thanks a lot Bro, now i can reset the BiOS password of my laptop. It was so annoying before, but since you have told me about it, no more words anymore but YOU ROCK!!! again, thanks a lot Raymond!
Regards – Amirz

Gaara8 years ago

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.

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

digArt9 years ago

This post is very useful;
Thank you very match Raymond

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

bhasidh10 years ago

Thank you Ray.

Another useful tool from Raymond. Thanks

Ammar11 years ago

Thanks Raymond.
Useful tools.