OisiPrice, Thanks for the response, I am relieved to see that I'm not Robinson Crusoe. Sounds to me as if we have the exact same problem, I too can see signs that my speakers are getting sound but nothing can be heard, no matter how I configure the system. Intel Display Audio Driver Windows 10. Looks to me as if either Microsoft jumped the gun getting W10 out into the wild or developers are being a bit tardy in issuing drivers for the new OS. Either way, it looks as if I need to get a soundcard with W10 drivers, I can't wait for the buggers to play catch-up. You may need to update your drivers. I had the Realtek 7535 drivers installed and was routinely getting a click and then a reduction in sound that would last a couple of seconds, then return to normal. I downloaded driver 7544 and audio is working perfectly Sb0220 Driver Windows 10 more. !!!