I was finally able to get it working, I just had to uninstall and delete the driver several times until it showed as "High Definition Audio Driver" within Device Manager before following your "browse...

Thanks, but I've already tried this. It just says that "The best drivers for your device are already installed." I think it must be that my laptop has some weird custom part, hardware id is...

Would you mind please explaining step-by-step how to do this? I tried running Setup.exe in the "PG468_Rtlupdv3206" subfolder, but it errored out saying "No driver supported in this driver package."...