On the computer motherboard locate the BIOS clear / password jumper or dipswitch and change its position. Once this jumper has been changed, turn on the computer and the password should be cleared. Once cleared, turn the computer off and return the jumper or dipswitch to its original position.
Lenovo is one of the most popular computer brands across the globe. And each model made by Lenovo has a basic input / output system (short for BIOS), which is used to manage the basic hardware settings.
The most important feature of BIOS is to change the boot order and switch boot modes. This mostly happens when you need to reinstall the OS or boot from external drives such as DVD or USB drive. This would be a dangerous operation if someone accesses your computer without permission. So in order to prevent unauthorized access, Lenovo put two security mechanisms to combat this activity by adding a power-on or BIOS password.You have to input the correct password when accessing BIOS setup utility after you added a password. This is the same to power-on password, which you have to type the right password after booting. However, this would cause some problem in future if you or power-on password.
This is common case as the chances of accessing BIOS is rare. If you didn’t write down the password, then it is quite possible to forget it. Fortunately, there are ways to recover the password. I will tell how to do this in the following parts. Step 1: Turn off your Lenovo computer and leave the computer off for at least five seconds. Step 2:Press and hold the 'F1' key, while turn on the computer.
Release the 'F1' key when you are on the BIOS screen. Step 3: Type the 'password'in the password field of the current BIOS. Click the 'Password' button and select the icon 'Supervisor'.
Step 4: Enter the password of the current BIOS in your field and press the space bar. Press 'Enter' on the blank password box.
Press 'Enter' on the verification screen. The BIOS password should be removed. Step 5: Save the changes and Press F10. In the setup notice window, click 'Yes'.
Step 1: Turn off the Lenovo computer and disconnect the power cable. Then, you have to unscrew the bottom of laptop.
Step 2: On the side of the palm rest, locate the release button and push it, hold the release button while you will have to lift the palm rest and access to the touchpad cable to disconnect it. Then, you have to remove the keyboard from the laptop compartment and disconnect the keyboard cable in a secure way. Step 3: Find the CMOS battery connected to the motherboard with the white plastic cap.
Simply eject the white plug remove it with your hands or gently pull the plug with a non-conductive tool to detach. Now turn on ThinkPad with power cable. Step 4: Reconnect CMOS battery and assemble the Lenovo ThinkPad as it was.
![Bios Bios](/uploads/1/2/5/6/125656997/167797536.jpg)
The BIOS password will be reset to default and you have full access to BIOS.
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. 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 PasswordsBefore 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.If you can Boot into WindowsCMOS 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.If you Cannot Boot From Hard Drive or CDAlthough 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 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 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. “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. 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! 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.