Good news! IE11 is selectable under the Start button: select "All Apps", scroll down to "Windows Accessories", scroll down to Internet Explorer, click it and voila! To make it the default browser, go to Start, Settings, System, Default apps and choose Internet Explorer under Web Browser. To return to it easily, you will want to pin it to the task bar,etc. Do this with the app open and right click on the icon in the task bar and choose the pinned location you want.