Important: You should back up your existing iPhoto Library folder before using the rebuild feature. A backup allows you to restore the iPhoto Library if anything unexpected happens during the rebuild that prevents the library from rebuilding correctly.
Before performing a rebuild, you should install any iPhoto updates by using
Software Update. If a software update resolves your issue, then you don't need to rebuild. It's also a good idea to search
Apple's Support Page for your specific iPhoto symptom before doing a rebuild, just in case there is a more specific article or relevant solution.
To rebuild the iPhoto library:
- Quit iPhoto if it is open.
- Hold down the Command and Option keys on the keyboard.
- Open iPhoto.
- Keep the keys held down until you are prompted to rebuild the library.
- A dialog will appear with rebuild options. Select the options you want to use.
- Click Rebuild to begin the rebuild process. This may take a few minutes to complete.