Q: Boot Camp drivers windows 10 are missing

Hey guys,

just installed win 10 on my new 2015 macbook pro 2.5ghz model. Installation went smooth, but the boot camp assistant setup was hanging at the realtek driver for hours. There was a (temporary) partition on my win named something like "OSxReserved" and this contained all boot camp drivers. I manually installed the realtek driver, re-did the boot camp setup and it worked. After restart, the partition was gone but the drivers aren't fully installed because my trackpad doesn't work, nor the brightness/volume buttons.

I tried downloading the drivers from boot camp assistant in El Capitain again, but the option to download them dissapeared and it just shows me a option to restore the OS X partition to its full size and remove bootcamp.

Please help!