My Operating system shows many errors. So I want to setup my operating system again. But When I want to enter my BIOS system its want a password. But I don’t know my PC’s BIOS password.
How can I enter my BIOS system?
If you don’t know the Bios password there is one thing to do. You need to clear the CMOS and reset your motherboard to default settings. On the motherboard locate the CMOS/BIOS CLEAR jumper or dipswitch and change its position.
Normally the jumper is labeled as CLEAR, CLEAR, CMOS, CLR, PASSWD, PWD, CLRPWD and etc. After locating it remove the jumper from the current 1-2 position and put it on 2-3 position. Then turn on the PC and your BIOS password will be cleared. After that shutdown the PC and return the jumpers to the original 1-2 position.
Ensure that you are dealing with the correct jumper set otherwise your PC will malfunction upon changing the wrong jumper settings. Normally this jumper is located near an edge of the motherboard close to CMOS battery. You can also refer the user manual of the motherboard to find the exact place of CMOS jumpers.
You can also clear CMOS settings by removing off the CMOS battery for sometime (5 – 10 minutes) and reinstalling it. There are also various utilities designed to help bypass CMOS passwords such as PC BIOS Security and Maintenance TOOLKIT.
If a password is enabled in your BIOS, you won’t be able to access the BIOS settings. Disabling it can be done in different ways. First to try is the password reset pin on your motherboard. Turn off your computer then open the CPU case. On your motherboard, locate the jumper for the CMOS password labeled “PSSWRD MODE” or sometimes “PSWD”.
This is the jumper that enables and maintains the BIOS password. By default, the jumper is plugged to pins one and two (1 and 2) and the third pin is left open. To reset the BIOS password, lift or disconnect the jumper and transfer it to pins two and three (2 and 3), leaving pin one open.
Now, turn on your CPU then turn it back off after five (5) seconds. Now, transfer the jumper back to its original place in pins one and two (1 and 2) then turn on the CPU. The password is now cleared and the BIOS is now accessible. The other option to remove the password is to “short” the CMOS battery.
This is not recommended because it shortens the life of the battery. Do this only if there is no option to clear the password from the motherboard. The easiest method to reset the password is to simply remove the CMOS battery. Turn off your computer then remove the battery from the motherboard. After this, turn on the CPU. This will reset the entire BIOS settings to factory defaults.
Turn it back off then insert the battery again. When you turn it back on, you need to set everything again from the date and time down to the drive settings.
