Over a period of time, Internet Explorer can become slow and tabs may become unresponsive. If you installed many toolbars, add-ons or plugins, they will affect the browser performance and also stability. Badly written add-ons are the most common cause of crashes. Additionally, you might have changed your browser settings and don't remember the default settings. If you face any of these issues, you should try resetting Internet Explorer. It comes with useful "Reset" feature which can restore the defaults and disable third-party addons with one click.