Try using a small block of wood and a hammer, preferably a hard wood like Oak. Work a little bit at a time on the bottom
edge. Start at one end and move forward. Don't try to remove it fast or you may have trouble. And try to keep from using metal tools, because they will distort and scratch if you slip when using one. They can be a pain. Be patient.
Do you mean to tap it underneath on the window side pushing it outwards? These pieces are a real pain. Theres still small pieces of the vinyl roof stuck under this trim so it definitely needs to come off.
