Disk Space Fan is a freeware and it is a nice disk space analysis tool for Windows. It helps you to free up disk space by quickly finding and deleting big, useless files. It displays disk space usage with a nice chart. You can navigate the folders easily with the chart. It is also intergrated with Windows Explorer to open, delete and browse files or folders.
Scans directories and drives to find out the useless and larger files.
Diagram of a flower show in the form of free disk space
Browse/open/delete files on ringschart
Preview a picture on ringschart
Support for Unicode
Save scan history
Network path support
Full compatibility with 32 and 64 bit Windows