tried running catalysthttps://i.gyazo.com/c218d8965e882a4c0334f3bb4475c759.png
not sure if the picture is working, its telling me - "We are unable to find a driver for your system. No supported AMD hardware was defected"
just realized windows update is saying R9 200 series, but AMD auto detect is saying HD 8xxx series...could be the issue?
AMD is working closely with Apple to provide Bootcamp drivers for Windows 10.
At this point in time please direct all your queries in this regard to Applecare or Bootcamp support.