I know I have posted in the past this problem and when I attempted to download direct X set up and install it. First of all it too Le me I have the latest Direct X version then after reboot I had sound back! Now I have run into the same problem. I have uninstalled RA tried reloading Direct X and got the same notice that I have the latest version. And then tried to reinstall Retro arch. And still no sound. Running window 10 professional Nivudia 2gig graphics card. 8 gigs ram. Sound card is on my mother board
I have already checked and saw that nothing is muted on RA. What else can I tell you in the way of information about my set up that will help you to help me solve the nightmare of a problem !!!