Windows 10: How to keep both files when copying duplicates?

I have Windows 10 Pro. I am trying to copy emails from Outlook Microsoft Office Standard 2016 to a folder on my computer. It's 500+ emails, many emails in just a few threads. I am unable to copy all 500+ emails to the folder. When I try to copy a "duplicate" email the subject is the same but the content of the email is different, same thread, different email to the folder, I am only give the options to Copy and Replace, or Don't Copy. Instead of keep both. How can I keep both/all "duplicates"

:)

 

Java.nio.file - Copying files

You can't copy a folder, thats why it generates an exception (you are trying to copy a folder using a copy file function).
You probably need to list all the files inside that folder and copy one by one

 

Java.nio.file - Copying files

Issue was the above, so thanks temp02.

 

Finding duplicate files

Hey hey,

During the years the backups have just accumulated in random places, essentially, and I would like to clean up. Is there a program that can search for duplicate files? And by that I mean identical files. I tried dupeGuru, but that somehow found ... all files to be identical I guess? Like how a bunch of jpg's with different names, sizes and locations being marked 100% identical, or how a bunch of xls-files with completely different everything also were 100% matches with each other. I don't need any fancy functions, just a list of the files that share the name and filesize and created/last write dates.