Content

• Steps
• Advice

Have you ever been unable to access your old computer because you forgot the BIOS password? Without a password, the computer is completely useless. Fortunately there is a way to reset the password. Read this article to learn how.

Steps

Method 1 of 3: Jumper Password

1. 

   Open Computer. This method is applicable for desktop users. Unplug the power cord on the back of the computer. Remove the case to access the motherboard. The motherboard is the main motherboard of your computer, all the important parts are here.
   • Remember to ground yourself before touching the inside of the computer, otherwise you will damage the component.

2. 

   
   
   Find the BIOS jumper. There are dozens of jumpers on the motherboard, you must choose correctly.See the motherboard documentation and check it carefully. The jumper that plugs into 2 of 3 is the BIOS password controller.
   • The Jumper name can be CLEAR CMOS, CLEAR, CLR, JCMOS1, PASSWORD, PSWD, etc.
   • The jumper is usually located in the corner of the motherboard and near the CMOS battery.

3. 

   
   
   Move the jumper. To reset BIOS password, you need to move the plug-in jumper 2 out of 3 million. On most systems, moving the jumper to the other is possible to change the password. For example, if the jumper is plugged in points 1 & 2, just switch to pages 2 & 3.
   • Some systems will reset the password when the jumper is completely removed.

4. 

   
   
   Turn on the computer. After restarting, the device will clear the BIOS password. Turn off the machine and return the jumper back to its original position. Close the case and use as usual. advertisement

Method 2 of 3: The back door password

1. 

   Determine if you have access to the CMOS jumper. If using a laptop often inaccessible jumper. So you need the back door password. These passwords are encrypted, but you can decrypt them with special key generation commands.

2. 

   Turn on the computer. When asked for your password, enter it 3 times. The System Disabled screen will then appear. Don't worry, the system won't be deactivated, it should function normally after reboot.

3. 

   Record the sequence of numbers displayed on the screen. You need this sequence number to create the BIOS back door password. This sequence can contain both letters and numbers.

4. 

   Create a password. On a working computer, visit this page and enter the passcode from your laptop. The program will generate a password for you. This may take a few minutes.
   • Some laptops use their serial number to create a password. Depending on the table in the More Details section of the website above, you decide which series of numbers to enter.
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Method 3 of 3: Remove the CMOS battery

1. 

   Open Computer. This method is only applicable for desktop computers. Make sure the computer is powered off. Remove the case to access the motherboard. Unplug the power cable on the back of the computer to completely disconnect the power.
   • Don't forget to ground yourself before touching the inside of the computer, otherwise you will damage the component.

2. 

   Locate the CMOS battery. The CMOS battery is round, silver in color and looks like a clock battery. Carefully remove the battery from the case. Wait about 5-10 minutes for all the power accumulated in the motherboard to be discharged.
   • You can bypass the standby time by moving the CLR_CMOS jumper to the 'clear' position while removing the battery. As such, it will automatically release the electrical energy accumulated in the CMOS chip.

3. 

   Insert the battery. All BIOS settings will be reset when you turn on the computer. You need to reset the date and time in the BIOS setup menu. advertisement

Advice

• Sometimes the BIOS jumper has a "handle" that is painted brightly for easy identification. Take a look at the bottom of the case. If the computer is assembled then there is usually a small patch with the jumpers and jumper reset location.
• If the deadlock is over, the computer manufacturer can provide you with a "reset password" if you can prove ownership. You can do this with a Dell computer, but usually for a fee.
• If you are looking for Sony PCG Series BIOS Master Password, try: http://elektrotanya.com/?q=hu/content/sony-pcg-series-bios-master-password