Getting back to monodevelop IDE from visual studio?

I got a new laptop, reinstalled unity 5.

Now in the Unity project window when I click on a c# file to edit visual studio comes up instead of monoidevelop.

I guess something about my new laptop changed the default editor…?
How can I go back to monodevelop being tne default editor?

In Unity, go to Edit > Preferences > External Tools, and choose MonoDevelop in the External Script Editor drop down menu.

Hi i am a new developer mono develops ide is not working for me can anyone tell me how to fix it.