Cathie try alt-control-delete all at once to get to the task manager.
In task manager click on startup.
Look for Realtek HD Audio Manager.
Is it there?
If yes right click on it and the click on enable.

If it is not there click on search (the one just right of the start button)
Type control panel
Do you see the Realtek HD Audio Manager there?
If yes adjust your settings there.

If it is not there google Realtek HD Audio Manager and download and install it.

Me, it's not about how many times you fail, it's about how many times you get back up.
Cop, that's not how field sobriety tests work.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware