Turn off power at the breaker
Verify the circuit is de-energized with a tester
Remove the existing outlet cover and receptacle
Identify the line wires coming from the panel
Identify any load wires going to downstream outlets
Connect the hot line wire to the brass LINE terminal
Connect the neutral line wire to the silver LINE terminal
Connect downstream hot wires to the brass LOAD terminal if GFCI protection is needed downstream
Connect downstream neutral wires to the silver LOAD terminal if GFCI protection is needed downstream
Connect the ground wire to the green ground screw
Keep LINE and LOAD wires separate
Tighten all terminal screws securely
Fold wires neatly into the box
Mount the GFCI receptacle in the box
Install the cover plate
Turn power back on
Press the TEST button
Press the RESET button
Confirm the outlet works properly
Use a licensed electrician if wiring is unclear or damaged