方法非常簡單，不多廢話，直接附操作流程：

1. 控制面板->聲音，然後在彈出的視窗中右擊不需要的（虛擬）裝置，選擇禁用。
2. 繼續右擊不需要的（虛擬）裝置，選擇屬性，接著在控制器資訊處再次點選屬性，切換到驅動程式標籤頁，點選解除安裝，注意如果勾選了刪除此裝置的驅動程式軟體會把Steam刪除！

方法來源：https://steamcommunity.com/app/353380/discussions/0/1699416432431153158/

引用自 Griminvain:
I've got the same problem and until 20 minutes ago I was reading this post. I want to post a solution for all the users that have the same issue.

How to remove the Steam Streaming Speakers/Microphone

1. Go to Sound Settings
2. Disable the "Steam Streaming Speakers" (SSS in short)
3. Right Click on SSS and click on properties
4. Once it's open click on the "Properties" inside the "Controller information" box
5. Near the bottom left corner there's a button called "Change settings" that requires Administrative rights... click it
6. Once the properties window refreshes go to Driver Tab
7. Click on "Uninstall Device"
8. Click again on the uninstall button once the new window appear.

Warning: Don't check on "Delete the driver software for this device" or you'll uninstall Steam as well.
Once it's uninstalled close all properties windows and you're done. No device shown anymore. And no device switch is performed automatically anymore. Have fun :)