Bluetooth keyboard not working after update to Windows 10
The new Keyboard driver on Bootcamp broke the connection for my keyboard under Windows 10 and it might break yours too.

So after using the solution from Zidad for the last couple of months (thank you) I decided to find a better solution to be able to use the Fn button and all the volume and multimedia functions of the Apple keyboard, here is what you need to do:


You need the Apple Keyboard driver that comes in the Bootcamp 5, you can either download the full pack from Apple (version 5.1.5621 works), or download only the keyboard driver from my dropbox (64bit windows only):


https://www.dropbox.com/s/jexvjcg2zlmjg3e/AppleKeyboardInstaller64.exe?dl=1

   •If you downloaded the file above proceed to step 4.



Unzip the BootCamp 5 pack
Navigate to the unzipped folder and go to BootCamp/Drivers/Apple
Run AppleKeyboardInstaller64.exe
It will tell you that it's installed, but it won't work yet.
Open Device Manager and go to 'Human Interface Devices', right click Apple Keyboard and select "Update Driver Software"
Click 'Browse my computer for driver software', then 'Let me pick a list of device drivers on my computer'
Select the Apple Keyboard version 5 that you just installed (NOT the newest version 6).


Profit!