Set up iCloud on your Mac
To use iCloud on your Mac, you need to sign in to iCloud using your existing Apple ID, or a new one, then select the iCloud features you want to use.
Note: If you’re already signed in to iCloud, you can change your iCloud settings at any time.
Choose Apple menu > System Preferences, then click iCloud.
Enter your Apple ID (or click Create Apple ID), enter the password, then follow the onscreen instructions.
Important: Be sure to use the same Apple ID when signing in to iCloud on all your devices. That way, no matter which device you’re using, you have access to the same photos, desktop and documents files, mail, contacts, calendars, notes, reminders, and other documents and data stored in iCloud.
After signing in