Determine your version of Internet Explorer by using the Help pull-down menu and clicking About Internet Explorer. There is a Version field in the dialog box that appears that indicates which browser version is running on the computer.
Keep Internet Explorer up to date automatically with the Automatic Updates feature, beginning with Internet Explorer 9. To enable this, tick the Install New Versions Automatically check box on the About dialog box. It is strongly recommended you keep your browser up to date; Web page design conventions change regularly, and many services may not display properly in older versions of Internet Explorer.