Car covers can be a phaf to put on and take off. This is is how I manage to do it -
Firstly, unhook the cover from the front and back bumpers.
Fold the left and right hand sides of the cover to form a strip down the center of the vehicle, making sure the inner material is faced outwards.
Then roll the cover up. I find rolling towards the base of the windscreen is the easiest way.
Work smoothly and carefully, no tugging!
Putting on the cover is a reverse of this process, rolling the cover back towards the boot, folding outwards then tucking the cover over the wing mirrors and bumpers.
Doing it this way makes putting it back on much easier because you don't need to guess which end is which, avoiding fumbling and potentially causing inadvertent damage by dragging it across to the paint.