Remove top nut first using a rachet gun and then replace nut a few turns.Jack up car,remove wheel and remove two bolts at bottom of strut that go through hub.These use an 18mm socket.Remove bracket that holds on brake hose (10mm spanner/socket) and remove abs lead from bracket (if fitted).
Then remove top nut and drop whole strut out.Use clamps to compress spring and then remove second nut at top which holds top mount/bearing in place.
Refitting is reverse of above but bear in mind you will need to reset your camber.Good luck.