Remove the fuse or turn the breaker to the off position to disable the circuit for which the outlet is being replaced.
Verify that the outlet is not live by using an outlet tester or voltmeter. If there is still current to the outlet, the circuit is still live. Repeats steps 1 and 2 until current is no longer present.
Remove the screws while holding the outlet cover in place and remove the cover.
Remove the screws holding the GFI outlet in the electrical box and carefully pull the outlet out to gain access to the wires.
Remove the wires from the GFI outlet. If there are more than one set of wires on the GFI outlet, you may want to label them in the event that a GFI outlet will be installed at a later date. GFI outlets only work when the load and line wires are properly installed. The top set of wires is the load set, feeding additional outlets in the circuit. The bottom set is the line set, which lead back to the main electrical panel.
Hold the new outlet with the ground at the bottom and the plugs facing you.
Attach the black wires, known as the hot wires, to the right-side screws.
Attach the white wires, known as the neutral wires, to the left-side screws.
Attach the bare copper wires, known as the ground wires, to the green ground screw located towards the bottom of the outlet.
Push the outlet into the electrical box slowly. The wires can be bent as needed. Screw the outlet into place.
Re-enable the circuit by replacing the fuse or turning the breaker back to the "on" position.
Verify current using the outlet tester or the voltmeter. Once current is verified, install the outlet cover and clean up.