Turn off power at the circuit breaker
Verify the power is off with a voltage tester
Remove the existing outlet cover plate
Unscrew and pull the outlet out of the electrical box
Note the wire connections before disconnecting them
Disconnect the wires from the old outlet
Identify the line wires and load wires on the GFCI outlet
Connect the incoming power wires to the LINE terminals
Connect any outgoing protected wires to the LOAD terminals if needed
Connect the ground wire to the green ground screw
Tighten all terminal screws securely
Fold the wires neatly into the box
Mount the GFCI outlet into the electrical box
Attach the cover plate
Turn the power back on at the breaker
Press the TEST button on the GFCI outlet
Press the RESET button on the GFCI outlet
Confirm the outlet is working properly