The passenger and rear one's just need a flat head screwdriver and some gentle persuasion. Put the screw driver in the gap and prize the handle of and work your way along it once it's loose use your hands and pull it off. For the drivers door handle you need to remove the lack plastic bit on the inside. again a flat head screwdriver will help. It will just pop off. Then the whole handle just need pulling in all corners at that will pop off too.