Mike, it doesn't sound like you are using Lightroom correctly. First, Lightroom is a database, the catalog. It doesn't store your images, it stores information about your images. This includes where the file is stored on your hard drive. If you move the files from one hard drive location to another, changing folders, you invalidate the information that Lightroom has about your files. Thus, you have a database entry that says the file is in such-and-such location, but in reality the file is moved to a new location. At this point, you have to update the database with the correct location. If you try to work further with invalid information, you start to run into they type of trouble you report here. First, in the future, use Lightroom to move the images from one folder to another. Doing so not only moves the files to the new location on the hard drive as you want, but it keeps the database up to date with the correct and current information. More info on this is here: Move folders around in Lightroom | Adobe Photoshop Lightroom CC tutorials Next, if you have already moved your files around on the hard drive outside of Lightroom, you'll need to update the location within Lightroom. Details are given here: How to find missing photos in Photoshop Lightroom Going through the specific things you mention: I manually copied photos from one folder to another and then tried to import them into the new folder. Again, don't do this, it causes problems. The files have already been imported, you can't import them again from a different location. It refuses to see them as new pics. That's because they aren't new pics, they're still in Lightroom. I tried to synch the folder and still does not add the photos. Syncing is not how you want to take care of this, because you stand to lose some of your work. You should be reconnecting the images, as described above in the second link I provided. But if you want to use sync (which is not what sync is really for), you have to sync the old folder first. This will update the catalog with the new information, that these images are no longer at this location. This would just be the same as deleting the files in Lightroom, it removes them from the catalog. The problem is that you will lose any work you've done (any edits, keywords, etc). Then you would sync the new folder so that you can update Lightroom with the new location. Again, this is the wrong way of going about things as it takes many extra steps and you lose information. In addition, I removed several photos and say delete from disk but they are still there. If you move a file outside of Lightroom, the file is now disconnected. Lightroom no longer has control of the original file on disk. Thus, Lightroom cannot delete the file from the disk. It doesn't know where the file is on the disk in order to do so. Instead, all you are doing is deleting the catalog reference to the file. This is what will let you sync the file from the new location. But again, you are losing work and also making more work for yourself.
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