Users of EMET 5.0 Should Upgrade to 5.1 Before Installing Today's IE Patch

Microsoft has warned that a compatibility issue exists and EMET 5.0 should be updated to version 5.1 before installing the patch issued today for Internet Explorer 11 on Windows 7 and Windows 8.1.

http://blogs.technet.com/b/srd/archive/2014/11/10/emet-5-1-is-available.aspx