9 ways to reset / remove bios password for lenovo, hp, dell, acer, asus laptops


Once you forgot the BIOS password, you can crack the BIOS password, reset the BIOS password, or bypass the BIOS password.

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ROM BIOS or commonly known as BIOS, is an integral part of a computer. Whenever we turn on the computer, initially, it shows the memory capacity. Suddenly, the light of the NUM lock glows, & there is a beep sound at the end, after which we see the familiar Windows Logo. For a computer geek, this is normal behavior that a computer exhibits after it is turned on. However, the same cannot be said about others who are not familiar with computer hardware & might be using it to accomplish the daily tasks. They might keep on wondering what exactly happens when the computer is turned on. Here come the role and importance of the BIOS. It is a cpu located on the system board or motherboard of a computer. It holds all the information about the hardware of the computer. Suppose you have added a new hard drive khổng lồ your computer lớn enhance the space, và that hard drive is not getting detected in BIOS.

Will you be able to lớn use that drive once you login khổng lồ Windows? The answer is No; BIOS has lớn detect the hard drive first since it holds all the information related to hardware settings, và then it will be detected by the operating system.BIOS hold all the information related khổng lồ hardware settings, system date, & time. It is also responsible for initiating POST, which is a self-check done on the system by itself.

Part 1: How lớn crack BIOS password?

There are some annoying scenarios where you want lớn change some sites, settings and find that it is not taking the password. You might get a screen like this.


This also might be a scenario where you have bought the computer for someone else, and the seller didn’t nội dung the BIOS password. Also possible that someone else uses the same computer & has phối a different password in BIOS. We keep on trying with our best-guessed passwords. But, after certain tries also it didn’t work, then vị what? If I cannot enter BIOS, that means I don’ be able khổng lồ make any changes in settings.

In that case, we have khổng lồ break the BIOS password. There are different ways to crack the BIOS password. Some steps are given below:

Step 1 The first option will be khổng lồ change the Password Jumper Settings on the BIOS. There is a specific jumper on the motherboard, which is meant for this. However, it is advisable lớn read the sản phẩm manual first before trying this step because the Jumper position will differ from one motherboard to another.

Step 2 to perform this, one has to lớn turn off the computer, make sure the nguồn cable is out of the wall outlet. Unscrew the screws located on the Side Panel of the CPU.

Step 3 Once you vày that, identify the BIOSjumper"s locations on the motherboard by checking in sản phẩm documentation và reset it.


The jumper might be labeled as CLEARCMOS or JCMOS1. However, the best will be to lớn always refer khổng lồ the hàng hóa documentation.

Step 4 Once this is done, restart the computer and kiểm tra whether the password is cleared or not. Now once the password is cleared, turn off the computer once again, & put back the jumper khổng lồ its original position.


If the first method doesn’t work, you might try the backdoor entry. In the case of desktop, this has lớn be accomplished by checking the CMOS jumper.

For máy vi tính users :

The process will be entirely different for máy tính xách tay users since they have to lớn use a backdoor password entry option. Enter the wrong password thrice on the screen, which will show an error like this.

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Make a chú ý of the code which is displayed. & then, find a BIOS password cracker tool like this site: http://bios-pw.org/ Enter the displayed code, & then the password will be generated in a few minutes.

Part 2: How lớn bypass BIOS password?

Another situation similar to the scenarios we discussed above can be solved by bypassing the BIOS password. The methods which can be used here are similar to lớn the methods used in previous scenarios. In addition to that, we can use these two methods as well:

Method: Overloading the keyboard buffer

This method is specific lớn some of the old system boards, and the newer systems might not implement this. This is done by booting the system without a mouse or keyboard or certain BIOS architectures; it might work by hitting the ESC key in quick succession.

Part 3: How lớn reset BIOS password?

If you have tried lớn crack the BIOS password and it is not working for you, you can reset the BIOS password, perhaps.

Method 1: Remove CMOS battery

Step 1: Locate the CMOS battery.

A CMOS battery will be of a flattened round shape. CMOS is an integral part of System board BIOS, & all the motherboards will have a CMOS battery. It is effortless khổng lồ identify on the motherboard since it will be round, flattened, và coin-shaped. It stores the BIOS settings, including basic hardware settings, date, time, và other system information. Khổng lồ remove the CMOS battery, firstly, the system has to lớn be turned off và ensure that the power cable is disconnected.


Step 2: Remove & put back the battery.

Once the system is completely turned off, remove the CMOS Battery. Wait for 15-20 minutes. Put back the CMOS battery and turn on the system.

Step 3: Reset password.

After step 2 is done, you can bypass the BIOS password và log in khổng lồ your computer successfully. Chú ý that you can add a new password again from BIOS. If you forget the password again, then continue steps 1 và 2 to lớn reset the password.

Video tutorial: How to Enter BIOS on Windows 10

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Method 2: Run command from MS-Dos prompt

This method is working only if you can access the installed Operating System. Once we login lớn our desktop, we have to lớn run the MS-Dos program & execute the following commands in the same order as it is shown here:

debug, o 70 2E, o 71 FF, quit

This command resets the BIOS settings, which include the BIOS password as well. This process is accomplished by using the Debug tool from MS-Dos.

Method 3: Use Third-Party Software

Today, there is much third-party software available, which can reset BIOS passwords, but access to the Operating System is necessary. Some of the popular BIOS password cracking software is used lượt thích CmosPwd và Kiosk.


Method 4: Use Backdoor BIOS password

Backdoor BIOS password is a phối of passwords, which are master passwords provided by BIOS Vendor. These passwords are generic, & they are specific khổng lồ manufacturers. In other words, all the manufacturers maintain a mix of master passwords that can be used irrespective of whatever password the user has set. These passwords are not very hard lớn get by & can be easily accessed from the manufacturer’s website.