How to disable netsupport manager option

I want to know how to disable/hide net support manager option? I know how to set up but i don't know how disable or hide the option. As i have noticed every time i use my computer, someone open the files which i know that they opened it. So whenever someone wants to try to disable the net support they can't find the option
. And also the Deep freeze option i want to hide/disable the icon to be invisible to the users.
Maybe you guys have an idea, feel free to post your answers and concerns your help will considered big bonus for me.
Thank You
