Prompt [Q] Mirror Android Stick to PC

Hello, I use the justop k10a (4.2.2) on my TV and want to mirror the display to my PC so I can use it even without the TV on.
I read the stick supports Miracast and has a WifiDisplay app installed (which searches something when I run it, maybe for a pc client?),
also my pc supports Miracast (Windows 8.1 Pro).
How can I do this?