This morning when I opened my MBAir Mid 2013 I clicked Finder. Strangely it showed nothing; just a blank sheet as it were! After my restarting, the Finder was back in normal format. Just curious what could have happened?
Probably just a small bug. How soon did you open Finder after starting the MacBook Air? If you did it almost immediately, sometimes, it just probably takes a few seconds to load everything up.