Trouble upgrading to High Sierra
I have a MacBook Air 2013 running OS X 10.9.5 I tried to install High Sierra. It ran for over an hour and never showed progress. It was like it was frozen. When I go to the app store it says that it has been installed but when I look at about my mac it shows OS X 10.9.5
Not sure what I should do ?
MacBook Air (13-inch Mid 2013), OS X 10.9.5