App.config separated from my exec file?

Question

Hello,
I have a simple C# window app. The problem is that I want to transfer the app.config file to a secured folder so that no other users can edit it. With this, I would like to inquire if it is possible to have the app.config file stored separately with the executable file. If yes, perhaps can you please provide me some sample codes on how to achieve that.
 
Thanks!