Lock A Specific Audio Device So Windows Isn't Allowed To Change (It Support Run At StartUp)
Windows loves switching your default audio device on its own — plug in a PlayStation controller and Windows suddenly thinks it's your speakers, or reconnect a headset and your sound jumps somewhere you didn't ask for. It's annoying.
SoundManager stops it. You lock the devices you want, and if Windows tries to switch them, SoundManager puts them right back automatically. Set it once, done.
%LocalAppData%/SoundManager/