windows 7 HDMI audio not being detected. - Microsoft Community
Amazon.com: DELL OPTIPLEX 390 DT Desktop Computer, Intel Core I3-2100 3.1GHz, 8GB DDR3, 1TB, DVD, WIFI, HDMI, VGA, Bluetooth 4.0, Windows 10 Professional 64 Bit (Renewed) : Electronics
Amazon.com: SENGKOB USB to HDMI Adapter, USB 3.0/2.0 to HDMI 1080P Video Graphics Cable Converter with Audio for PC Laptop Projector HDTV Compatible with Windows XP 7/8/8.1/10 : Electronics
How To: Fix HDMI No Audio (Windows 10, 8 & 7) - YouTube
How to Update HDMI Driver on Windows 10, 11 - Driver Easy