I am having trouble downloading pictures from an external hard drive to y new MacBook Pro.
I am having trouble downloading pictures to my new MacBook Pro from an external hard drive. This was supposed to be done by Apple, but it was not. I have downloaded pictures with Apple Care, but cannot transfer all. I am trying to do this by myself, but I'm not doing it. Any and all assistance is appreciated.
MacBook Pro with Retina display, OS X El Capitan (10.11.3)