I solved our problems. (windows 10)
1 - install soundtap
2- When restarting you must hold shift when clicking on restart. follow the instructions on how to disable driver signature verification.
when this is done correctly, your windows will be restarted without the red "x" over the speaker icon and sound tap will now work.
unfortunately for me, i have to restart in this mode everytime while soundtap is installed. If i don't, th