Question about IBM ThinkPad R40 2722 Notebook

3 Answers

BIOS password Does anyone know how to get by the BIOS password when booting if the password was changed and don't know what it is?

Posted by on

  • workwkids1 Feb 22, 2008

    how do I find out the backdoor password


3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 4,102 Answers

Hi the only way you can do this is by removing the internal button battery thats inside the laptop then switch it on and off a couple of times then put battery back in this should remove bios password this is one of the only ways you can do this.
The other now depends on the board in your laptop some laptops but not all have jumper switches usuall one of these switches is to enable and disable the bios password not all laptops have this though but if you look its a strip of about 5 or 6 switches small but push up or down their should be a sticker inside the laptop telling you what each switch is for i had to do this when i brought a second hand laptop witch had the password on it hope this is some help.
Also try google and ask for
How to remove bios pasword on laptops
this should then list sites that show you how to do this let me know if you need further asistance
Removing the button battery stops the clock working and should disable password but switch on and off few times with bat removed then put back in ok let me know how you get on ok

Posted on Feb 22, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 167 Answers

You need flash your BIOS!!! You can't recovery because it is bios so you need to flash it!
good luck

Posted on Feb 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,944 Answers


It can be attempted in several ways.

  • Using a manufacturers backdoor password to access the BIOS
  • Use password cracking software
  • Reset the CMOS using the jumpers or solder beads.
  • Removing the CMOS battery for at least 10 minutes
  • Overloading the keyboard buffer
  • Using a professional service
  • Posted on Feb 22, 2008


    1 Suggested Answer

    • 2 Answers

    SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

    a 6ya expert can help you resolve that issue over the phone in a minute or two.
    best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
    the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
    click here to download the app (for users in the US for now) and get all the help you need.

    Posted on Jan 02, 2017

    Add Your Answer

    Uploading: 0%


    Complete. Click "Add" to insert your video. Add



    Related Questions:

    1 Answer

    Password on Bios of sony vaio VPCEB46FG

    You don't need to put a bios password on it.

    If the bios already has a password on it then it will not let you boot the computer without you putting it in. It sounds like you are already booted up and into the bios, if that is true don't set a bios password.

    May 13, 2012 | Computers & Internet

    1 Answer

    How to reset forgotten bios password on a dell precision 220

    If you know the current password just boot the machine and look for what key to press to get into the Bios or Setup. There you can change it if you know the current password.

    If you don't know the password, then you will need to remove the CMOS battery from the motherboard and let it sit for a couple of hours. This will cause the computer to clear memory of everything. Then replace the CMOS battery and start the machine. Unfortunately you might have to disassemble the laptop to get to the CMOS battery.

    Mar 15, 2012 | Computers & Internet

    1 Answer

    Bios Password Blockd

    You have to use F10 to get into setup to restore defaults. Default is no password. When you change all the setup you wanted and save all the changes then you leave setup to restart the system. If you then get blue screen, you do the ctrl-alt-del to get task manager. Which can have new task config, you click ok. Don't put in any password again in setup or task manager. Learn setup and task manager software?

    Dec 31, 2011 | Computers & Internet

    1 Answer

    I don't have the password and i want to go in bios

    if you have not assigned a bios password or anyone else has you do not need a bios password to enter BIOS
    during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up

    Press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there


    click start control panel user accounts

    on the users tab,click the name of the computer administrator you can change the password there

    hope this helps

    Jan 21, 2011 | Acer Aspire 1360 Notebook

    1 Answer

    Laptop cannot boot from cd drive

    is it boot password of BIOS password?
    if its BIOS password then you can get rid of it by resseting the CMOS.
    to do this take wireless card out and have a look in the corners for a a little battery. unplug it and wait for 1-2 minutes then plug battery in, put the wireless back in(make sure the white and black cables are still attached correctly) and restart.

    From BIOS you will be able to change the boot order and be able to boot from CD.

    See if this helps.
    If it doesnt contact ACER.

    Jan 04, 2010 | Acer TravelMate 2501LMi Notebook

    3 Answers

    Asus eee pc 4g bios password

    You don't need to access bios to change boot drive just hit escape key a couple of times when you power on and it will give you options for which drive to boot from.

    Jun 08, 2009 | ASUS Eee 4G Notebook

    1 Answer

    Bios password for toshiba laptop needs reset

    Try This: Resetting a Toshiba BIOS Password KeyDisk will reset the BIOS password on Toshiba laptops.
    Older Toshiba laptopsmag-glass_10x10.gif can be convinced to boot without their power-on BIOS password by attaching a dongle to the parallel port which crosses a number of the pins. The pin out is:
    Pins 1-5-10 2-11 3-17 4-12 6-16 7-13 8-14 9-15 Some Toshiba's can be convinced to bypass the startup BIOS password if you hold down the <LEFT-SHIFT> key while booting the system.

    Feb 14, 2009 | Toshiba Portege S100-S1133 Notebook

    2 Answers


    It sounds as if this is a BIOS password request.

    Has anyone been changing setting in the BIOS recently?

    Occasionally, static or electrical interference can cause a BIOS password to reset to it's default.

    Bypassing the BIOS password is not easy, but is possible. First of all, I would suggest you try some of the common manufacturers default passowrda. You can find lists here and here.

    Failing that, there are software programs available to recover/reset lost BIOS password or you can manually reset the BIOS. Details of how you do this are here and here.

    If you are not 100% sure what you are doing, I would not advise you to reset your BIOS. There are setting in here that you will need to set in order for your computer to work properly. Wrong values could prevent it from working at all, or could even cause permanent damage.

    Google for 'reset bios password' - You'll find lots more information...

    Hope this helps,


    Mar 07, 2008 | Toshiba Satellite A100-S8111TD Notebook

    Not finding what you are looking for?
    IBM ThinkPad R40 2722 Notebook Logo

    416 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top IBM Computers & Internet Experts

    Brian Sullivan
    Brian Sullivan

    Level 3 Expert

    27725 Answers

    Les Dickinson
    Les Dickinson

    Level 3 Expert

    18343 Answers

    Donald DCruz
    Donald DCruz

    Level 3 Expert

    17129 Answers

    Are you an IBM Computer and Internet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides