PHOTOS - deleted and need recovering
I need some help. I have over 45,000 photos on my iMac. Every month I download them unto an external hard drive, just in case. Yesterday, I went through my photos, on my computer, and decided to delete some of the folders that I haven't used for awhile, thinking that the pictures were on my external hard drive, and I can just pull the folders out and put in another folder. So, I plugged in my external hard drive and all of a sudden it began to copy the photos from my computer. It never automatically did that before, or at least I never noticed, I always had to move my PHOTO file from computer to external hard drive. Lo and behold all the missing files are not on my external hard drive anymore. SO, I went to my trash since I had quite a few PHOTO ALIAS apps out there from previous monthly downloads. Found my most recent one from 12-6-2025, thinking everything should be on there when I downloaded it. Made a folder on external hard drive and moved the folder over and when I opened it, it didn't have the photos and had my recent photos. What gives? I would think the Trash Folders would be what it was when I trashed it. I do not have my computer folders on I-cloud, don't know if that would have helped or not. Please let me know, what options I have to recover the folders that I can't find. Of course, they aren't in most recent deletions either. Thanks.
iMac 27″, macOS 15.7