Microsoft Defender Definition Update Failing

I just did a clean install of the latest Windows 10 build (Build 10586) on my Dell XPS laptop.

Did all my Windows updates including the latest Defender Definition before installing N360.

For some reason Windows is trying to install the Defender update again and of course since Defender is disabled, the update is failing.

I uninstalled N360 and ran Windows update again thinking all would be well if I just let it do the update and then reinstalled N360.

Well, after all that Windows is trying to do the Defender Definition update again and of course, it is failing again.

Anyone else running into this?  Any suggestions?

Thanks

Bob