Disable volume OSD

I have looked for ages to find a solution to this: When I use windows 8, there are windows 8 builtin fancy OSD's for brightness and volume (like in this picture , the upper ones). When I use windows 8 on my macbook, with the most recent Bootcamp drivers, I get the Mac OSD for volume (like this one: *click* ). The volume OSD is (correctly) the windows 8 OSD. How can I disable this Mac OSD and use the windows OSD instead?