How to regenerate the thumbnails of the Photos after the restoration of hard drive?

Hello!

A few weeks ago, our drive hard iMac failed and was repaired under the hard drive replacement program. I have restored our our last backup system, but all of our photo in photo thumbnails are black or white with no details. When we open a photo, that is, but the thumbnails are not visible, making navigation impossible.

I tried to repair the library. Who did nothing.

I tried to turn the photos. Turning the last import (300 photos) two-way regenerated the thumbnails OK, but it took 6.5 minutes. I 80 000 pictures. According to my estimate, that makes a little more than 12 days (assuming a linear extrapolation, in any case), during which my CPU will be under a lot of stress.

I also noticed that the rotation thing has no effect for videos.

So I thought, as a last resort before putting my Mac in two weeks of enforced non-toucher, I would like to ask if anyone had other ideas.

Also, does anyone know how to regenerate the photos to the videos?

Thanks in advance!

-Mike

Try first to turn a lot of direction tiles 90 ° and 90 ° backward.  See if that will restore them.  If it works then make lots at once, not the entire library.

If it does not try to repair the library according to the instructions in this document to Apple: Repair Your Library.

Warning: If you use iCloud photo library with Photos, this operation will lead to Photos to upload all your pictures again (of difficulty missing or incorrect thumbnails in photo - Apple Support).

Tags: Mac OS & System Software

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