If you need to unlock your computer's boot passcode in the BIOS, there are a few ways to try. Please note, however, that these operations may involve changes to the computer hardware and should be done with caution. If you are not familiar with these processes, it is advisable to seek the help of a professional technician.
Remove the CMOS battery: This is a common method that works with most desktop computers and some laptops. Turn off the computer, disconnect the power supply, open the case, and locate and remove the CMOS battery (usually a silver coin-shaped battery) on the motherboard. Remove the battery for about 30 minutes before reinstalling. This causes the system to lose all CMOS settings, including the BIOS password.
Use the jumper to clear the password: Find the jumper on your motherboard to clear the CMOS settings, usually labeled "Clear CMOS", "JCMOS1", "CLRPWD", etc. Change the position of the jumper (e.g. from 1-2 pins to 2-3 pins) and then return it to its original shape. This method also clears the BIOS password.
Use a universal password: Try using a generic CMOS password. Many BIOS manufacturers have some default passwords, and you can find the corresponding lists online and try them. However, please note that these universal passwords may not work on all new models of motherboards.
Use of third-party software: If the password only protects the BIOS settings and does not affect Windows boot, you can try using a third-party program to decrypt or reset the BIOS password. For example, CMOSPWD is a usable software that can be accessed from the web** and follow the instructions.
Command Prompt method: If you are able to access the system, you can try using the command prompt to reset the CMOS settings and BIOS password. Run the command prompt as an administrator and enter a specific command to reset the settings.
Please note that incorrect operation may cause damage to your computer. Before making any modifications, make sure you understand the corresponding risks and consult a professional if necessary. If none of the above methods solve the problem, it is recommended to contact the computer manufacturer for further assistance.