[joeko23]

So first try to pop that channel on top out (marked with 1). If it pops out, put screws there. Also that means the bottom should pop out as well. If those channels don’t pop out then you can put screws at the top where I marked a circle and the bottom where I marked a circle. You can get this screws with white heads if you’d like. Also I’ll ask my window world rep how where they would put the screws. I’m really curious now as I’ve never noticed any exposed screws.