ok users have to have a password otherwise that account is not network accessible, in your screenshot where youve shared your folder and clicked permissions full control has to be granted to everyone, in the next tab over "Security" youshouldnt have to do anything but just make sure the Users...
I feel like school, back when I was actually in school, was more entertaining though, because of how much I get to interact with people, hang out with friends, and other stuff like that. All I get to talk to at work is my boring coworkers lol