Nse.exe problems not fixed

I do not know what this nse.exe issue is but it comes up randomly "NSE.EXE application error unable to start." I do not know what NSE.EXE I called Norton Support. I got some guy that logged into my computer (with my permission) and then checked to see if my Norton 360 was up to date. It did have a slight update since the previous day but I am sure had nothing to do with it. I told him exactly the problem but he was not listening to me. He said they have no record of it. I repeated the issue. I told him to check multiple times. Without my permission, he started updating all my applications. I stopped him and told him he had no right to do that and that I have applications that I may not want them to be (I have some legacy software that may be affected). I told him I wanted to speak to his supervisor. He left my session open online, he went silent on the phone. I waited awhile then hung up and dropped the session. Summary: I am tunning Norton 360. Everything is up-to-date with Norton and Windows. No apps were running that were out of date. Won't know if it is fixed until it fails again. Terrible service from Norton.