how to remove ge spacemaker microwave oven

I have a GE Spacemaker microwave oven that I need to remove. I’m not sure how to go about it, as I’ve never had to do this before. I’m hoping someone can provide some advice on how to do it safely and correctly. I understand that the microwave is mounted to the wall, so I’m assuming I need to disconnect the power and then somehow take it off the wall. Is there anything else I need to do? Any advice would be greatly appreciated. Thanks!