When encountering the problem of photo library corruption, you can try the following methods to repair it in turn: 1. Use the repair function that comes with the photo (close the application and hold down the Option Command key to rebuild the image library); 2. The old version of macOS can manually check the disk permissions; 3. Create a new user to test whether the photo library is normal; 4. The final solution is to delete the original library after backup and rebuild. Most cases can be solved through the first few methods. When severe damage is severe, backup and reconstruction will be used. You must ensure data security before operation.

There is something wrong with the photo library, which is really annoying. If you encounter loading stuttering, pictures do not display, or prompt "photo library is damaged", it may need to be fixed. Fortunately, macOS provides some practical methods, which can be done in most cases.

1. Use the repair function that comes with photos

Apple has actually considered this issue and has built-in a repair tool in the "Photo" application. You just need:

• Close the Photos app
• Hold down the Option Command key and then reopen Photos
• At this time, a window will pop up, allowing you to choose whether to "reconstruct the photo gallery"

This method is suitable for minor damage, such as problems caused by sudden power outages or forced exits. The system will try to repair the database index and structure, which can usually be completed in more than ten minutes. The specific time depends on the number of photos you have.

2. Manually check and repair disk permissions (for legacy macOS)

If you are using older versions of macOS (such as High Sierra or earlier), sometimes disk permissions are abnormal, and the photo library cannot be opened normally.

You can try the following steps:

• Open Applications > Utilities > Double-click to open Disk Utility
• Select Boot Disk (usually Macintosh HD) on the left
• Click the "First Aid" tab, and then click "Run Disk First Aid"
• After completion, restart the computer, then open the photo to see if there is any improvement

Note: Starting from macOS Catalina, the system automatically manages permissions, and this trick is not very useful.

3. Create a new user test photo library

If the above method does not work, it may be a problem with the user configuration file. At this time, you can try to create a new user account to test whether the photo library can be opened normally:

• Go to System Settings > Users and Groups > Add New Users
• Log in to the new user and copy the original Photos Library.photoslibrary file
• Open the "Photos" app again to see if it's normal

If there is no problem, it means that the original user's preference settings are in conflict. You can migrate the data to a new account, or further troubleshoot the configuration file issues of the original account.

4. Backup and rebuild the photo library (the ultimate solution)

If all the methods are tried and still not working, then you can only take the last step: backup and reconstruction.

The operation process is roughly as follows:

• Copy the photo library file to an external hard drive or other secure location (make sure the backup is complete)
• Delete the original photo library (the path is usually ~/Pictures/Photos Library.photoslibrary )
• Reopen the Photos app and it will automatically generate a new empty library
• Then import the previously backed up photos

Although this method is a bit troublesome, it is particularly effective for severe damage. However, be sure to confirm that the backup is correct before deleting the original library, otherwise the photos will be easily lost.

Basically these are the methods. Most of the time, you can solve the problem by using the first one, but if it really doesn't work, try it step by step. Don’t rush to reinstall the system. Start by checking it out with simple operations. The problems are often not as serious as you think.

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