Moderator's note by Mike (Mav): This thread is now in the appropriate board.
Forum Moderator and Customer
Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain
He who feared he would not succeed sat still
1/ Setup pc/laptop/tablet logins for each user so that the one that is Using discord can't reinstall it, give them only user access not admin
2/ if your router has the feature, you will also have to block the discord web site so discordapp.com as it also has a web platform as well
But then the spanner in works it also has a phone app, take whoever's phone, that's going to make you popular.