How can I change OS X Double-Click on Title Bar to be like Windows?
Update July 2020 - macOs Catalina 10.15:


Choose Apple menu  &gt; System Preferences, then click Dock.
Select check box Double-click a window’s title bar to zoom




3. Double click on window's title bar to maximise the window.


zoom: Expands a window to fill the space between the Dock and &gt;the menu bar.
If the Dock is along the side of the screen, the window &gt;fills the &gt;space below the menu bar and to the side of the Dock.

macOs versions upto High Siera:
Its old question , but still if it helps anyone.
You need following 2 in order to maximise your window when clicked on title bar:


Go to Apple icon &gt; System Preferences &gt; Dock &gt;
Select &quot;Double-click a window's title bar to&quot; &quot;Zoom&quot;

Shift + Double click on title bar to maximise the window.



Cheers