One day something happened and the Preview window on the right hand side of the window started appearing in all my Finder windows. How can I make it go away permanently? If I close it, it only closes for that one particular folder.
Close all Finder windows except for one.
In the only open Finder window, arrange it in a manner that you'd like as the default without having the Preview window showing.
Press commandj (⌘J) and then at the bottom of the View Options sheet, click the Use as Defaults button.
answered Feb 25 '16 at 13:13
