Cant connect classic controller

[geoloky]

Hi guys, im new on dolphin and im having some issues with connecting the classic controller to Dolphin

I want to use it as a Game Cube controller, but when i try to configure it dont recognize another device besides the keyboard

https://imgur.com/a/NxFvlRk

here's a pic to show whas happening

i think maybe its because I use windows 10