Modifying this control will update this page automatically
![](https://help.apple.com/assets/63B87829CE32D578D65A85E4/63B8782ACE32D578D65A85EB/en_GB/f1e225cbd2d09efe77ff8d1f7aaecc6d.png)
Repair your library in Photos on Mac
If you experience problems with photos in a library, you can try to repair it. If problems persist, you can also restore your library from a Time Machine backup.
Important: You should back up your photo library before repairing it.
If the Photos app
on your Mac is open, choose Photos > Quit Photos.
Press Option-Command and double-click the Photos icon in the Applications folder (or click the Photos icon in the Dock).
In the Repair Library window, click Repair to rebuild your photo library.