CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
SequoiaView - SequoiaView is a featured rich application that comes with the visualization technique to provide you a single view of files and documents that are stored in your hard drive.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
DiskSavvy - DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk...
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
DiskWave - DiskWave is a free utility to help you determine where most of your hard drive space is consumed.