Es gab früher (?) einen Fehler bei der Berechnung von lokalen Sicherungen, wenn keine TM Platte angeschlossen war
siehe auch https://apple.stackexchange.com/questions/186402/backups-seeming-much-much-larger-than-my-hard-drive
Vielleicht hilft das dortige Verfahren
The solution: Go into System Preferences > Time Machine, and flip the switch from on to off. Restart your computer, confirm that your storage usage looks reasonable again, and then you're free to go back and switch automatic backups on again.
Vielleicht hilft das dortige Verfahren
The solution: Go into System Preferences > Time Machine, and flip the switch from on to off. Restart your computer, confirm that your storage usage looks reasonable again, and then you're free to go back and switch automatic backups on again.