Hier klicken bitte http://support.apple.com/kb/PH18653 OS X Yosemite 10.10 http://support.apple.com/kb/PH18653 http://support.apple.com/kb/PH18653 http://support.apple.com/kb/PH18653 http://support.apple.com/kb/PH18653 http://support.apple.com/kb/PH18653 http://support.apple.com/kb/PH18653