Duplicate files ? Help with removing

diyAudio Member
Joined 2007
Just updated my computer and did a file restore from the back-up drive and I now have thousands of duplicated music files. Ditto with all my pictures. Lost all my bookmarks too ALL of them Drat!
Running W10Pro, what is a recommended program for doing a duplicates removal?
Usually happy enough with the included player but quite willing to pay for a better jukebox if anybody wants to recommend one. I used to use the full version of Music Match decades ago that came with an included volume matching and file duplication removal but the new version doesn't seen to include those functions, Warning to all; I am a Luddite where technology is concerned and not familiar or really comfortable with digital audio except as a space saver, still using vinyl in the main for my main listening.
 
Mediamonkey not sure about the free version has a duplicate finder.
If You have a large collection of music files this is a must have program for tagging & management.
I use it with the regexp find & replace & the tagging inconsistencies extension.