Deleting Duplicate Images

Hi & Happy Hannukah!!

Can anyone suggest a way, either through some Adobe App or a 3rd party app, to locate & delete duplicate images/files.

I have over 10,000 images on my hard drive & know there are many duplicates.  I delete them when I come across them but I'd like

to go through and zap them all.

Thanks & Merry Christmas:)

-Paul