Wireless Keyboard not working in Windows 10

Hi,

I just recently upgraded my Windows 7 to Windows 10 on my iMac, I've got a wireless keyboard and mouse (but the mouse isn't an Apple one), when in windows the mouse is the only thing that works. I've tried removing and reinstalling partition, still hasn't worked. I've tried just installing the support software onto a USB and installing it separately but still hasn't worked. I've taken a screenshot of my device manager while in windows 10 and I can't find any of the Apple drivers on the system, but the sound and graphics work just fine. Anyone got any ideas? I don't fancy using the on-screen keyboard the rest of the time! Haha