I am in the control panel trying to uninstall programs. There are several programs that I can't uninstall. When highlighted these programs don't give me the uninstall button or the change or repair buttons. They show the name of the program and the size of the program. They are taking up space on my hard drive and I don't use them. Even when I go to delete the icon, it brings up a window that says by removing the icon it doesn't uninstall program. How come I can't uninstall these programs?