How To Manage Mac iCloud Storage
To turn off iCloud on your Mac, go to System Preferences > iCloud and click the “Sign Out” button.
To turn off iCloud storage on your computer, go to the Apple menu and select Preferences > iCloud. From there, you can choose to turn off iCloud Drive or iCloud Photos.
Turning off iCloud on your Mac will disable the following features:-Mail, Contacts, Calendar-iCloud Drive-iCloud Photo Library-Find My iPhone/iPad/Mac-Find My Friends
