Desktop and Documents: All your files from these folders will be stored on your iCloud Drive.Photos: The full-resolution version of your photos will be stored in iCloud Photo Library.Messages: All your messages will be stored in iCloud.See also: iMessage Read Receipts, How To Enable Or Disable On iPhone, iPad, and Mac

Storing your files in iCloud means that, in addition to saving space on your Mac’s storage disk, your files are also available on all your devices. In order to store your files in iCloud, you will need to have enough storage space available. See also: How To Sign In To Optimize Storage See also: iCloud Backup Failed, Fix Storage Currently, in the U.S., iCloud storage prices are: If you click Optimize next to Optimize Storage, you can choose to automatically remove movies and shows that you have already watched. You’ll be able to download these again anytime.