First open Internet Explorer and go to the Tools menu. If you do not see your menu bar, press Alt on your keyboard and it should pop up.
Then, click Internet Options.
Navigate to the Advanced tab.
Click the button that says Reset...
You will be given a warning box before finally resetting. Take note that all of your cache, cookies, and web information will be lost if you select Delete personal settings.
If you are ready to reset, click Reset.