How to switch from ELAN to Synaptics?

I had always used the synaptics driver for my laptop (lenovo Y50-70) and i was happy with it but now after updating to windows 10 it got switched to another driver called ELAN and i really don't want it because the gestures don't work there. I tried uninstalling it so many times but it didn't work and the options menu is just grayed out so i can't press that. Is there any way i can remove it?