Dev-C++ Setup tips   5.11

https://sourceforge.net/projects/orwelldevcpp/

Accept all the defaults for the install. 

Tools--Editor Options--Fonts    can change your font size. Line numbers are on by default.

The Project/Class Browser sidepane is useless for 102; turn it off by:
  View--Project/Class Browser  uncheck

View--Toolbars: The only toolbars you need are Main, Edit, and Compile and Run. 
You can uncheck the others and move the three remaining into one line of toolbars.

A .exe file will be created for each compiled file. You can delete them.

102 has nothing to do with Projects. 
So don't select New Project, use New Source File instead, always. 
You can simplify life by making the New Source File default code include
the standard incantations by doing Tools--Editor Options--Snippets--Default Source.
Copy and paste these lines into the box:
#include <iostream>

using namespace std;

int main() {

}