I don't recommend keeping 16.6, as I know, it has a fan controller bug, which either stops the fans or spins them at 100% randomly (the first one is worse).
I stopped worrying about drivers versions some time ago. My 6x480 rigs run Win 10 x64 with the 16.5 driver provided by the Microsoft drivers update routine.
It works flawlessly, with Claymore, sg-miner, gateless gate... no fan bug whatsoever.
I've got some MSI cards and the win10 drivers seemed to have chewed up the (just a guess) 32-bit bus running claymore, the cards still run under ubuntu in pure 64bit mode. These cards even have samsung memory and MSI still fucked the dog.
I've got a powercolor and a sapphire running claymore on win10 without any issues and really f'n fast too.