If this does not work, check if your Lenovo laptop has a dedicated key to activate or deactivate the touchpad. If yes, you might have pressed that key accidentally that disabled your touchpad.

Only the Lenovo Ideapad L340 15IRH has an SD card reader. Both laptops also come with a touchpad that has multi-touch gestures enabled. They differ in the keyboards that come with each laptop.

It’s a touchpad surface without actual buttons, but instead utilizes a force sensor that manufactures the feeling of a click through feedback when applying enough pressure. Lenovo’s haptic ...