Seit dem letzten Systemupdate wird meine externe Festplatte nicht mehr auf meinem Mac Book Pro erkannt. Was kann ich tun?, Seit dem letzten Systemupdate wird meine externe Festplatte nicht mehr auf meinem Mac Book Pro erkannt. Was kann ich tun?

Seit dem letzten Systemupdate wird meine externe Festplatte nicht mehr erkannt. Auf anderen Rechnern der Marke Windows wird die Platte erkannt und lässt sich bedienen.
Was kann ich tun?

I can also translate it into english, no problem. I forgot to do it.
So, as it is said, since the last update of my Mac Book Pro, my external doesn't work on my Mac Book. It doesn't open. I see, it's working, and it also works on other windows computers, but not on mine.
So it would be very nice, if someone can tell me, how to manage that problem...

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