Just to make sure we are talking about the same thing. I go to Control Panel - Programs and Features - Turn Windows Features on and off. The entry I think you mean is refered to as ‘Media Features’. The result is as shown below.
I’ve taken some time to restart Audirvana many times today. I have only seen the problem once. I conclude that either it is perfect and the ‘once’ was a fluke, or it is at least very substantially improved.
I have now had the chance to try restarting many times and I can report that, although disabling Audirvana in Background Apps greatly reduces the frequency of the problem, it is still present. About one start in twenty will run on the background. It’s not a major issue and I am unconcerned, but it would be interesting to know the root cause