In the Programs & Features applet, click "Turn Windows Features on and off". You'll see Internet Explorer listed there and you can uncheck it.
IE is no longer on my computer, but when I try to download IE10 I get message saying that a later version is already installed. If I look in control panel > uninstall a program, IE is not to be found. However, In C:// computer>programs files(x86) an IE folder exists, but I am unable to delete it. How can I download IE?