Set the directory to wherever you saved the two BIOS files in step 2.The first directory option under the Directory section is System/BIOS Dir.Near the bottom of that column is the Directory section.It is in the second column – “Settings” the one with the gears for the icon.Open RetroArch and enter the Directory location.You will have to set the BIOS location in RetroArch.everything is saved to RetroArch.cfg) then place all BIOS files for all emulators in the same folder (again, typically RetroArch/system folder.)
Download the two BIOS files you need (they are here in a zip file.).
