So I decided to use my old MacBook Air 2012 as a Windows laptop. I installed Windows 10 Anniversary using boot camp. Everything went well and I've installed a bunch of programs, Visual Studio, etc. It builds perfectly and everything works great.
Except for one thing: the down arrow key does not work!
I've installed the latest driver updates using the pre-installed apple update software. For some reason there is no boot camp control panel installed.
Not sure how to fix/debug this!