There is also a Settings icon, but all that does is open a panel to assign functions to the left and right buttons. I cannot have one of the two buttons act like a middle button in a 3-button mouse (which I need for some apps).
Usually you should get access to the advanced touchpad settings over the mouse settings.
Go to control panel -> mouse
Here you should check the last tab. In my case its called Advanced. There you can find the Advanced setting button.
In different cases this tab might be called Pointing Device or similar.
However, pressing on Advanced setting button you should get a new window opened called “Advanced features settings”. Here you have again two buttons for touchpad settings and pointer speed and tapping settings.
Check both…but of course this can be different on your notebook