Really good read guys, I have and use it's little brother control surface (FW1082) and have had no probs at all from XP, Vista to Win 7. All these O/S worked Fine with various Sonar platforms, now Platinum. Then the freebie Win 10 was too much of a pull ... so I upgraded .... work flow zero was the result! I'm afraid Win 10 is not for the fire wire user it seems, I tried to make it work and crashes with weird and odd things completely ruined my time in the studio ...so I reverted back to a fresh install of Win 7 and Sonar Platinum took a deep breath ... and all works fine. Windows 10 is a good big brother O/S but it's not for me, great on the laptop bad in the studio ...just saying is all!
My studio :- Win7 64bit 16GB, Tascam FW1082, Vx7, DX7, Tascam 688 (Analogue recording) and the rest is just showin' off)