Installeren van testdisk
Install the App Press Command+Space and type Terminal and press enter/return key. Run in Terminal app: ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)” < /dev/null 2> /dev/null and press enter/return key. Wait for the command to finish. Run: brew install testdisk bron: http://macappstore.org/testdisk/