I have to move 67,000 photos from my external hard drive to a new internal hard drive. How do I do that so Lightroom keeps all the flags and edits?
Lightroom keeps all the edits, flags and keywords in the catalog.
You can move the images from one hard drive to another.
Once done, you need to reconnect the images from another hard drive in Lightroom.
Please refer : How to find missing photos in Photoshop Lightroom
Retrieving data ...