bkbozovsky :
I have the same issue, and do not see Synoptics option. Using Windows 10, latest version. Dell Inspiron 15 laptop
Thanks
This has been driving me NUTS and I just figured it out! I have 2 laptops, a nice new Lenovo Yoga, which is solved exactly as described above (Synaptics options). But on my goofy el-cheapo ASUS, i don't have that option. However.... in the bottom right there's usually a little "carat" symbol next to the battery display. In that carat if you click it is an app called "ASUS Smart Gesture". Run that. Inside that app there are all the touchpad gestures and one of them is "click to zoom" which is set by default. This is NOT to be confused with the "magnifier", which I also turned off, but doesn't affect those accidental zoom gestures from screwing up your viewing! I hope this helps!