I got old archives of my old computers, Now I decided to merge all these folders and organize them, I got many backups so I need app that will find duplicate files and delete / move them, any ideas?
There are many tools which accomplish what you want. You can use the Advance System Care. I use it and its much pretty cool tool. It has many feature and of course what are you looking for. You can also use Duplicate File Finder. All features are listed there.