I know how to disable start-up items on the login screen, my question is when I view the running processes, if there is something that I don't want to start that isn't on the login item list how do I disable this? I know in windows you could use msconfig and that would enable you to disable startup items and core services if you didn't want them but I don't know how to do this on a mac. The apple store people had no freaking clue what to do and the genius bar was way too busy (although sometimes I doubt those genius' genius)