Manual How To Reset Bios Password

Today i found one unit pc at the lab that the bios is being password by one person. Than i tried to search it on google about reset the bios password using some software to avoind taking off of the CMOS battery from mainboard, because the guaranty is still about 3 month. Yup i`ve found a lot of tutorial and software on the google result page. I`m using keyword "reset bios password" on google,