What is the best software to find duplicate files?

Question

Data recovery

What is the best software to find and manage duplicate files?
There were many different utilities, but time does not stand still, maybe something ultimatum has appeared. It is necessary to identify numerous duplicate files on the disk (there may be a different creation time and name, the file extension is lost, but the same content)
The program must be compatible with Windows 7, optionally with XP and have a user-friendly interface

Answer 1

Yes, everything in this regard has already been invented by anyone thirty years ago and nothing new should be expected except for changed pictures and videos, but I think few people need this

Answer 2

DupFinder Good software works with a lot of files. Works more or less cleanly.

Answer 3

TotalCommander ))
Alt+F7 - select 'search for duplicates'