To enable iCloud Photos sync on your Mac, do the following:
How to access iCloud Photos on Android
Turn on iCloud Music Library on iOS Devices
On a Mac: You can set up cloud sync from the Photos app. Once you have the app open, head to Photos > Preferences > iCloud. There, select the checkbox for iCloud Photo Library. You'll also find this setting under System Preferences > iCloud > Photos > Options.
To merge in iCloud enable the smaller of the two libraries as your iCloud Photo Library. Wait for all photos to upload; that can take a very long time, a week ore more, depending on the size of the library. Photos will merge the the library into the library that is already in iCloud.
Use your iPhone
0:2410:23So first to make sure icloud photo library is turned on you're going to open settings scroll down toMoreSo first to make sure icloud photo library is turned on you're going to open settings scroll down to photos. And then icloud photos is the first toggle here at the top.
At the top right, tap your account profile photo. Tap Apple Photos. Tap Turn on sync or Turn off sync.
To change the System Photo Library: Hold down the Option key and launch Photos. Select the library that you want to sync via iCloud, and click Choose Library.
Download ALL Photos From iCloud to PC
Now you can use Duplicate File Finder to remove duplicate photos.
If there is an error message that says “iCloud Music Library can't be turned on because this device is already associated with Apple ID. This device can be associated with a different Apple ID in 90 days”, then you have to wait for 90 days. Use a single Apple ID on all of your devices if possible.
Apple gives users 5GB of free iCloud storage space for all possible purposes. However, all Mac owners may face the problem of duplicate photos filling up their storage space. Day after day, these duplicate and similar photos take up a lot of space on your cloud storage.