How to avoid duplicate files when setting up back-up system


#1

I have several external back up disks that I want to consolidate to one larger external backup drive. The problem is about 95% of the files are on both external drives. Is there a software program or a way to not get duplicates to migrate to the new external disk?
When you are talking about 1000’s of files, individually deleting files is not feasible.


#2

If duplicates files are present with same file names, you will get popup with “keep both”, “stop” and “Replace” message during the copy & paste process. So you can avoid duplicate files and then you can create backup of all overall received data files.


#3

There is a way to avoid/remove files with a lot of programs. Long time ago I tried a lot of them, but I am mostly satisfied from DuplicateFilesDeleter, which I’d recommend!