By default Install new versions automatically is enabled in Internet Explorer 11. To prevent IE 11 from installing new versions automatically via GPO, create a new GPO Preference to create the following registry update (Computer Configuration -> Preferences -> Registry):
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\MAIN
Create a DWORD called EnableAutoUpgrade with a value of 00000000 (HEX)
This will cause Internet Explorer 11 not to automatically install updates.