Thanks Tim, I have on my desktop an icon "MinGW" installer. I have tried many things and think I did install that but will try again. My problem seemed to start after I installed Visual Studio so I uninstalled it, all 104 megs. I am surprised that CB worked after I first installed it for several weeks. Now, after uninstalling CB and after removal of Visual Studio and then reinstalling CB just like before it still gives me the Environment error. What is a name for a Code::Blocks IDE with mingw in its file name?
I am going to take a C++ online course and am trying to get ready. John Voelkel