I have a Clevo laptop that shipped with Windows 8. I had to hunt down a specific version of the Synaptics driver to get 2-finger scrolling working properly after updating to Windows 10. Now, Windows Anniversary Update has quietly uninstalled this driver (!!!) and 2-finger scrolling is busted again.
I don't know what the version was, and haven't had much luck finding it again. Synaptics seems to be geared towards OEMs rather than end-users on their site, nothing there jumps out at me as helpful. Clevo of course hasn't updated any drivers for this machine in years, so I think I'm on my own.