To turn on iCloud Photos on your Mac, follow these steps:
1. Open the Photos app on your Mac. You can find it in the Applications folder or by searching for it using Spotlight.
2. In the menu bar at the top of the screen, click on “Photos” and then select “Preferences” from the drop-down menu.
3. In the Preferences window, click on the “iCloud” tab.
4. You’ll see an option that says “iCloud Photos.” Check the box next to it to enable iCloud Photos on your Mac.
5. If you want to optimize your Mac’s storage by keeping only smaller, device-sized versions of your photos on your computer, check the box next to “Optimize Mac Storage.” This can help save space on your hard drive.
6. If you prefer to keep the original, full-resolution versions of your photos on your Mac, check the box next to “Download Originals to this Mac.” Keep in mind that this will take up more storage space on your computer.
7. If you have a slow or limited internet connection, you may want to uncheck the box next to “Use Cellular Data” to prevent iCloud Photos from using your mobile data plan to upload or download photos.
8. Once you’ve made your selections, click on the “Options” button next to iCloud Photos. Here, you can choose to enable or disable specific features, such as My Photo Stream or Shared Albums.
9. After customizing your options, click “Done” to save your changes and exit the Preferences window.
Now, your Mac is set up to use iCloud Photos. Any photos or videos you take on your iPhone, iPad, or other devices will automatically be uploaded to iCloud and synced with your Mac. Similarly, any changes you make to your photo library on your Mac will be reflected across all your other devices connected to iCloud Photos.
It’s worth noting that enabling iCloud Photos on your Mac may require you to have enough iCloud storage space to accommodate your entire photo library. If you need more storage, you can upgrade your iCloud storage plan by going to System Preferences > Apple ID > iCloud > Manage Storage.
I hope this guide helps you turn on iCloud Photos on your Mac and enjoy the convenience of having your photos and videos seamlessly synced across all your devices.