When you visit a site that needs IE, Edge will automatically switch to IE mode, offering a seamless browsing experience without needing to switch browsers. Tips for Enabling Internet Explorer in Windows 11 I.E. definition: 1. used especially in writing before a piece of information that makes the meaning of something…. Learn more. IE 11 has been permanently disabled through a Microsoft Edge update on certain versions of Windows 10. If you any site you visit needs Internet Explorer, you can reload it with IE mode in Microsoft Edge. To open Internet Explorer, select the Start button, type Internet Explorer, and then select the top search result. To be sure you have the latest version of Internet Explorer 11, select the Start button, select Settings > Update & security > Windows Update, and then select Check for updates.