Using synaptics driver from their website I can get full functionality but WU keeps pushing its own version making me lose my middle button (yes I have a touchpad with the odd third button). I've disabled signatures using the troubleshoot restart menu and can install the newer driver no problem. During that reboot I have my full functionality back. The problem for starts on the boot after the forced restart boot, I lose tapping to click functionality and I suspect because the old drivers mixes up with the new one. Why such a suspicion because the synaptics settings interface seems to be an odd mixture of settings from the new driver coupled with those of the old. I've tried everything I know to fix this but nothing works permanently. More evidence that win10 is just not ready for primetime. Given that this is still happening on 10240 which many consider RTM...I'm stumped!