For the best iCloud experience, make sure your device meets the minimum system requirements.
Use the latest version of macOS. Update to the latest version of macOS. Go to Apple menu.
Use the latest version of macOS
Update to the latest version of macOS. Choose Apple menu > About This Mac > Software Update. If you’re using macOS Mojave or earlier, choose Apple menu > App Store. See if there’s an update available.
Sign in
Choose Apple menu > System Preferences, then click Apple ID. If you’re using macOS Mojave or earlier, click iCloud. Enter your Apple ID. When you sign in, iCloud is turned on automatically.
Check your iCloud settings
Choose Apple menu > System Preferences, then click Apple ID. If you’re using macOS Mojave or earlier, click iCloud. Choose the apps—like Notes, Photos, and iCloud Drive—that you want to use with iCloud.