Unplugged the microwave, then unscrewed the control panel. Then 2 screws to take the front plate off. 2 screws to undo the switch plate. Carefully pulled out the switch plate. Removed the bottom switch and took a picture of where the 2 wires where hooked on the switch. Took off the 2 wires and removed bad switch. Then replaced it with the new switch and reinstalled the 2 wires. Carefully put switch plate back on and rescrewed. Then put control panel back on and face plate. Plugged microwave back in, and done.