Same here! Bought elite controller, i dont have xbox one and even though i know its working, its vibrating while connected, clearly detected by windows and installing Xbox Elite controller drivers Xbox Accesories doesnt see it!
I've tried uninstalling/installing app drivers many times but it seems that nothing works. Its either message "connect your controller" or this **** "loading" from the picture i upload.
Sometimes when i remove/add app it drops few messages about the controller that you can adjust it, change analogs etc and after going "forward" on all of those it goes back to the screen i upload.
Tried all usb slots and still same
Bought this controller as the "best on the market" to have the option of mapping keys which i cant do because microsoft accessories app doesnt recognize it... I will use that 3rd party just to map it for now and while its free for trial but how is it even possible to buy premium product and have such problems. And connecting controller to xbox one is not an option for me because i didint buy it for xbox one!