Now we are essentially left with a few options: While Microsoft is easily at fault for this update bug, why prevent us from setting game audio the way we want it in the game itself? In Microsoft’s own KB notes on their support page, they provide a work-around to open the settings in the game itself and disable multi-channel (surround) sound, however SC2 is set to be locked to the settings in Windows. Unfortunately for me, I can’t remove this update (it may have to do with my system being in the Release Preview ring, I’m already running Windows 10 v1909 (Fall 2019) Build 1836 3.356). Microsoft acknowledges that KB4515384 update is the culprit.