i have problems with Crossfire wh en booting windows 10 i disable crossfire boots fine enable and restart boots really slow about 5 x slower any fix
Driver 15.7.1 windows 10 64 bit ( worked fine windows 7 pro)
CPU 8 core amd 8150 oc @4ghz
MB amd /asus sabertooth 990fx 2.0
RAM 2400 amd gamer r9 ram
SSD kingston hyper x
GPU amd sapphire r9 290 oc crossfire tri X
The solution I chose after trying for 3.5 hours was to uninstall Windows 10. The screen resolution, icon size (too large), and desktop text (too small) was unacceptable. Maybe I'll try Windows 10 later.