I am helping a friend setup a newly purchased PC which upgraded to Windows 8.1 during setup. This installed IE 11. The website on which his wife reports hours worked is not compatible with IE 11 (only through IE 10). I tried compatibility view but no joy. IE 11 is not uninstallable but can be disabled via the "Turn Windows features on or off" function in "Programs and Features". If I disable it can I then install IE 10 or does something more need to be done? Different browser is not an option.