Jul 12, 2017 Creating a New System Photo Library. There are any number of reasons you might want to create a new system library in Photos. Maybe it’s become corrupted and Photos won’t open, or maybe you just want to start fresh and archive your old one. Regardless, to create a new System Photo Library, first open the location where your current system.
- Iskysoft.com iPhoto Recovery Software (A Free Solution To Corrupted iPhoto Recovery) Regarding recovery of deleted photos in iPhoto, iskysoft.com iPhoto Recovery Software has been referred as one of the most efficient as well as capable iPhoto recovery program which can very easily recover the iPhoto library as well as can efficiently perform iPhoto trash recovery.
- Rebuilding a corrupted iPhoto library If you have an iPhoto library that is corrupt and causing iPhoto to crash or otherwise be unusable, iPhoto Library Manager provides the ability to rebuild your library based on the information found in its library data files.
- When I restarted the MacBook and tried to open Photos, I got the dreaded message that the library was corrupted and Photos could not open. Somehow the default library on Photos is now pointing to an old iPhoto library on the MacBook, not the correct migrated Photos library on the EHD.
- Oct 26, 2016 Thanks for your information of such good tools. I just have duplicated pictures after I make a new Photos library and import all pictures from the Masters folder of the old broken library. However, I noted that 'PowerPhotos' can't repair library as 'iPhoto library Manager'.
- Restore iPhoto Pictures Missing after Upgrade Now, let's start to recover photos disappeared from Mac using Library First Aid. Repair Permissions. This is probably the best option to start with. Rebuild Thumbnails. Resolve an issue where the thumbnail image disappears or is corrupted.
Follow these steps to use the Photos library repair tool:

- Hold down the Option and Command keys while you open Photos on your Mac.
- In the dialog that appears, click Repair to start the repair process.

You might be asked to type in your user account password to authorize the library repair.
The repair tool analyzes the the library's database and repairs any inconsistencies it detects. Depending on the size of your library, this might take some time. When the process is completed, Photos opens the library.
Update Photo Library On Mac
If you repair a library that's automatically updated with iCloud Photos, the entire contents of the library re-updates with iCloud after the repair process completes.