When I plug in a device a notification on top right part of screen pops up asking what I want to do with this device. WMDC window never popped up.
I thought this was only if you have a windows phone. It shouldn't open up for any random device, only your phone.
You can set it up to "do nothing" when a device is plugged in,
but this would mean every time you plug in a new device,
in the upper right-hand corner to click the notification and selecing "do nothing"