Need to disable/uninstall Knox on my recently updated S6

An OTA update to 5.1.1 loaded last week for my G920I and I am unable to uninstall Knox or disable it. Does anyone know how to do it without root? I am a huge supporter of rooted devices but this one does not have a whole lot of bloat so I would rather keep it unrooted. All the instructions point to a Knox icon and main settings in Knox which I do not have. Knox is loaded and running and alsmost using up a gig of ram. I had Knox enabled in 5.0.3 before the OTA update and it appears to be enabled still in 5.1.1. I do not care about security and I am careful about what I install and I don't need a system app running and wasting battery and ram. Thanks