dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
AllDup - AllDup is a freeware tool for searching and removing file duplicates on your Windows computer.
XYplorer - File Manager for Windows
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.
FreeCommander - FreeCommander is an easy-to-use alternative to the standard windows file manager. The program helps you with daily work in Windows. Here you can find all the necessary functions to manage your data stock.