Need help with shadow right click

So I am running windows 7 on a 4-5 (2009 i think) year old laptop, and whenever I right click somewhere (except Chrome) the button is still there. But only the one button/selection/option. Can someone help me get rid of this problem.I can get rid of it by taking out my monitor cord on the side then I plug it back in, but if I right click again it comes back.