How do I quickly find and delete duplicate photos on my iPhone?

You can use iCloud Photos on Windows to delete duplicate photos on iPhone 17 Pro Max. But there's a catch: Windows doesn't have the fancy "Duplicates" album that your iPhone has . The Windows version of iCloud is essentially a syncing tool, not a duplicate-finding tool. So you'll need to do a bit of manual work—or use a free duplicate finder alongside it.

When you install iCloud for Windows and enable iCloud Photos, your entire iCloud photo library syncs to a folder on your PC. You can access it through File Explorer, just like any other folder.

• On iPhone 17 Pro Max: The Photos app has a built-in "Duplicates" album that automatically finds and groups identical photos . You can merge them with one tap.
• On Windows PC: No Duplicates album. But once your photos are synced to your PC, you can browse, sort, and delete photos manually.

The key difference? When you delete a photo from the iCloud Photos folder on your Windows PC, that deletion syncs back to iCloud and deletes the photo from all your devices—including your iPhone 17 Pro Max.

Since you have an iPhone 17 Pro Max, the easiest path is actually to skip Windows entirely for the duplicate detection part:

1. Open the Photos app on your iPhone

2. Scroll all the way down to the bottom

3. Look for Utilities → Duplicates

4. Tap Merge next to each group (iOS keeps the highest-quality version and deletes the rest)

Using iCloud Photos on Windows to delete duplicate photos on iPhone 17 Pro Max is absolutely possible.