You need to remove the CMOS battery to reset your BIOS password.
If you have never tried removing CMOS battery before then I would not recommend you to do this as your last option.
Can you give me the screenshot of the error message as shown in below image ?
Ok. What is the system disabled error message(code) you are getting ?
Power on the laptop. When prompted for the password, type a incorrect password ***** times. This will lead to the System Disabled screen.
Is this your final decision ?
I am doing this. Please wait for couple of mins.