Use two fingers to scroll vertically or horizontally through documents and web pages.
Customize "tap-to-click" or "two-finger tap" for right-clicking, which can often be configured through Windows Settings or the Registry. Synaptic Touchpad
Two finger scroll not working on ASUS notebook - Microsoft Q&A Use two fingers to scroll vertically or horizontally
The is critical software that allows the operating system to communicate effectively with the touchpad hardware. Without it, the touchpad may only function as a basic "PS/2 Compatible Mouse," losing all multi-touch gestures and specialized settings. Synaptic Touchpad
Beyond basic cursor movement and clicking, Synaptics touchpads support advanced multi-touch gestures designed to improve productivity:
Pinch or stretch with two fingers to zoom in and out of images and maps.