Disk Space Fan is a freeware and it is a nice disk space analysis tool for Windows.It helps 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.
Features:-
Scans directories and drives to find out the useless and larger files.
Full compatibility with 32 and 64 bit Windows
Browse/open/delete files on ringschart
Diagram of a flower show in the form of free disk space
Save scan history
Preview a picture on ringschart
Support for Unicode
Network path support
DOWNLOAD IT HERE