Hi, my name is Andrew Dryden, and I am going to show you how to change a light switch cover. Things you'll need: a flathead screwdriver and a light switch cover. First, remove the light switch cover plate using the flathead screwdriver. Place the new cover plate over the switch and align the screw holes. After you've replaced the new cover, insert the new screws into the holes. And that is how to change a light switch cover.