There is no need to manipulate the Windows security settings anymore, because Windows 10 fully trusts the cross-signed driver component. Latest News! Microsoft-cross-signed 64-bit Trackpad++ driver is now available, and available to all users, with the normal public download.
Trackpad++ driver easily and automatically integrates itself with the Apple Boot Camp drivers, and comes with a Trackpad++ Control Module, the comprehensive control panel: Trackpad++ is the world's first alternate Windows driver for Apple Multi Touch and Force Touch trackpads of the Apple Macbook, Macbook Pro / Retina and Air notebooks.