There will be a work-around, always is. As above, I trained the Win7 version of Voice to operate many commands after acquiring a good mic. But broke my mic and haven't missed Voice Activated Anything. My dogs always thought I was talking to them. I too avoid Edge although it looks like a pretty good browser, very Chrome-like anymore with some usable features for a change. I guess that MS may have not considered that not everyone has a mic, others don't need to disturb the folks and critters around them, and still others, like me, really don't need it to be a such an intimate part of their life.
