I forgot to mention, I had already tried using
but had no effect. Is it working for you?
One of the previous thread had already discussed about it as well. Link ->
On Fri, Nov 23, 2018 at 9:51 AM Tsai Tzung-Dar <dmarc-noreply@xxxxxxxxxxxxx>
Maybe you can try to use PKEY_AudioDevice_NeverSetAsDefaultEndpoint
You can reference to
在 2018年11月21日 星期三 下午6:08:43 [GMT+8]， eno rocky<binoddummy@xxxxxxxxx> 寫道：
Is there any way in windows 10 to prevent virtual audio driver from being
default device only at installation not always?
As it is automatically selecting driver as default device on installation.
This problem I am facing in windows 10 only not other.
For installation i am using devcon.