can anybody please help me open my bios so i can adjust my settings and play the game i used to play before, it always appear to have a password i don't even know, i tried entering my desktop password but it won't open and i didn't remember that i put a password onto it

HP ProDesk 600 G5 Desktop Mini
Manufacturer: HP
Product: 8598
Serial Number: PHVUT0A8JDOIDR
Version: KBC Version 08.09.20

please feel free to reply onto me if there's any other information u need to know to unlock it