Is it possible to activate Windows Defender when using CIS?

Hi there! Since one of your latest updates my Windows Defender is not working anymore! I already removed your extra program called Internet Essentials (or something like it) but after a while again my Windows Defender is automatically turned off. Can you make an update for CIS en still keep Windows Defender working on my pc? I guess I am not the only one with this problem. Thanks! Ray from Holland