Game launces Steam VR

Whenever i launch the game, Steam VR also starts up. This is probably because Unreal Engine 4 has VR support enabled by default. Or is there VR support im not aware of?

Mine was doing this, however now it's stopped. I don't know what was causing it. Whilst it was doing it, I would have to turn the power off to the headset/lighthouses before launching and the game ran fine.