Why does my computer recognize a controller that is moving to the left?

As soon as I go into applications or games in which a controller is supported, they recognize a controller (which is not available!) And then everything behaves as if I would pull the stick on the controller to the left. I'm at a loss and can no longer play Fortnite, for example, because nothing can be selected in the start menu because the game thinks I'm using a controller.

Do you have Steam installed? That sometimes thinks you're in big picture mode and pretends to have a controller. You can change this in the settings, but you don't know exactly where.

Do you hate something else like a graphics tablet or something connected to the pc because I echoed it at fortnite also schomal and then I saw that the pen was lying on the tablet and I therefore wide-headed my mouse net towards it

can also be something else, for example a second mouse or something, or will it all be shown to you with x and b a and so

Yes, but fortnite is played through the epic launcher

Yes I installed steam and tried out the settings there, so it doesn't seem to be because of that. Nevertheless many thanks

Have nothing else excluded, the problem just came out of nowhere 1-2 days ago

Look if you have "connected" a virtual controller to the device manager

Does not matter. It's about Steam switching in between.

Too bad, then I hope you can still find the solution.