AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
AllDup - AllDup is a freeware tool for searching and removing file duplicates on your Windows computer.
Wise Care 365 - Wise Care 365 is a bundle of important registry, disk, and other system utilities for your PC.
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.