What I am trying to do is make sure that I have everything copied off of my failing (but still working) hard drive before I format it and send it back to Western Digital for warranty replacement. I have thousands and thousands of my photos on there, some not organized very well, why is why I need to make sure I have them all. I've got them backed up in other places too, but I want to make sure I've got all the same files across all drives.
Is there a good free tool that can compare an entire drive to just a folder on another drive, tell me what's different, and they copy over any files that exist on one but not the other? That would save me so much time.
Thanks in advance for any suggestions. I'm not sure if "drive cloning" software is what I'm looking for or not, because I am looking to compare an entire drive to just a folder on another.