When you have a compatible Mac and the macOS Catalina download completes, but there’s no prompt for the installation to continue, then search in your Mac’s application folder for a file called. If your Apple Mail doesn't seem to be searchable and/or has become so slow it seems to hang your Mac - or even displays incorrect email content, then it's time you attacked the problem: it's time.

1. Mac Photos Has Attempted To Repair The Library Window
2. How To Fix A Damaged Macos Photos Library
3. Mac Photos Has Attempted To Repair The Library Code

Pam Bush upgraded her Mac to the latest version of OS X, but her Photos library is full of black thumbnails, rather than tiny images. The Mac consultant who handled her upgrade told her it was a bug, and she needed to “rotate every image manually.” “Not going to happen in my lifetime,” Pam writes.

The consultant is technically correct: iPhoto and Photos rebuilds previews if you rotate an image, which can be done in Photos in the All Photos view by selecting Edit > Select All and then Image > Rotate Clockwise or Rotate Counterclockwise, and then the opposite after the rotation is complete.

However, for a large photo library, this is a lot of wasted time and effort, and might mask other problems in the file structure. Instead, you can rebuild thumbnails or repair the library, depending on the software you use.

For iPhotos and Photos alike, quit the app, then hold down Command and Option while launching, and keep them held down until you see a dialog.

In iPhoto, you’re prompted with the Photo Library First Aid dialog, and can choose among a number of options, including Rebuild Thumbnails. Select it, and click Repair. (Earlier versions of iPhoto had the Rebuild Photo Library dialog with two thumbnails options, and others that could be checked off at the same time.)

Photos removed any options: when it’s launched with Command and Option held down, you can opt to Rebuild or Quit. Rebuilding performs all maintenance operations and shows you the progress as it goes.

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Related:

Applies to all new macOS: 10.15 (Catalina), 10.14(Mojave), 10.13 (High Sierra), 10.12, and old Mac OS X like 10.11 (El Capitan), 10.9, etc.

The article provides full solutions to recover photos after Photos Library corruption and fix the corrupted Photos Library:

Photos Library corrupted, help me restore my photos, please.

'Hi there, can anyone of you tell me how to restore my lost photos on Mac? The Photos Library corrupted suddenly. All my photos stored in the Photos Library all disappeared. What can I do?

Please help me. And this is important for me to recover photos. Any solutions or suggestions are all welcomed.'

How many of you guys are facing Photos Library crash or corrupt problem and unable to restore photos? Here EaseUS software provides effective methods to prevent similar problems from happening again, follow to repair Photos Library, and recover all photos on Mac immediately.

Tip: Back up photos in case of losing them

Mac Photos Has Attempted To Repair The Library Window

If you didn't lose photos, the best choice is to backup them first. When unexpected troubles happen to your photos, you'll still have the backups. Here we recommend you to use Time Machine to backup all important photos and other data on Mac:

1. Click Time Machine and choose Set Up Time Machine.

2. Click Select Backup Disk or select locations (an external storage device is preferable) back up photos, and then click Use for Backup.

You can also copy photos and files one by one and paste them to another storage device where you want to store the backups. Be patient and careful while copying and pasting.

Part 1. Recover lost photos after photos library corruption

If photos lost due to Photos application or Photos Library corruption, you have two ways to restore the lost photos: 1. Restore lost photos with Mac data recovery software; 2. Retrieve Photos Library with photos from Times Machine backup.

Method 1. Restore lost photos with EaseUS Mac data recovery software

If you didn't create a backup of Photos Library in the Time Machine, you'll need Mac data recovery software to help. We recommend you try EaseUS Data Recovery Wizard for Mac which supports recovering photos from corrupted Photo Library and even worse situations.

Step 1. Launch EaseUS Data Recovery Wizard for Mac, hover the mouse over the system drive where the Photos Library is, and click 'Scan'.

Step 2. After finishing the scan, click 'Photos' in Quick Access. All your lost photos will list here.

Step 3. Double-click to preview the photo, select the right one and click 'Recover' to save the photos to another secure location on Mac.

Method 2. Restore corrupted Photos Library with photos from Time Machine backup

If you've created a backup of Photos Library with Time Machine, follow the steps below to restore Photos Library and all lost photos:

1. Connect Time Machine backup drive.

2. Click Time Machine in the Dock and enter Time Machine

3. Find backups - your photos then click Restore to recover lost photos.

Part 2. Repair corrupted Photos Library

If the Photos behaves unexpectedly or Photos Library corrupts, follow the next steps to start repairing Photos Library with Photos library repair tool:

Step 1. Close Photo Library if it's opened.

Step 2. Relaunch Photo Library by holding Command + Option key.

Step 3. Click 'Repair' when the 'Repair Library' dialog pops up and asks whether you'd like to repair the library.

You might be asked to enter your account and password to authorize the library repair. And the Repair tool will analyze the database of Photos Library, repair detected errors.

How To Fix A Damaged Macos Photos Library

If your Photos library is automatically updated with iCloud Photos, the entire contents of the library will re-updates with iCloud when the repair process completes.

Mac Photos Has Attempted To Repair The Library Code

Bonus Tip: Create a new Photos Library

The other alternative way to repair the corrupted Photos Library is to create a new Photos Library on Mac. By doing so, you'll have your Photo Library back and reuse it to edit your photos again:

Step 1. Hold the Option key and double-click the Photos icon in the Applications folder (or click the Photos icon in the Dock).

Step 2. In the Choose Library dialogue, click Create New.

Step 3. Type a library name and choose a location to store the library. Click OK to confirm.