Remove duplicate files with this disk analyzer. Also get rid of space wasted from program crashes and normal use. Organize your disk space usage with detailed graphical overview, notification alerts and customizable reports and cover your tracks while surfing the Web.
DiskState enables you to analyze your disk space, find large files, clean junk files and also identify duplicate files across multiple drives. The program offers graphical pie charts and customizable reports to quickly locate files of interest to you (e.g. old music files, large videos, specific file types). You can also generate snapshot of selected folder structures and compare them later to identify changes that have taken place between snapshots. Other features include browser privacy cleaning, scheduled cleanups, integrated Zip backup, low disk space notifications, folder/file comparison and more.

This program reports the current state of your disks: Total MegaBytes, GigaBytes, the amount of space used and free, and the useable swap space (or memory usage). Furthermore, one can browse through the folder structure with an intuitive pie chart showing relative folder space used.
DiskState can also eliminate space wasted after program crashes or by temporary files no longer needed.
The Duplicate Finder of DiskState uses a powerful 128-bit MD5 technology to track down redundant files. CRC32 is also available. Even if the file names are different, DiskState identifies duplicates by content and displays duplicates in a comprehensive list.
Got a lot of MP3s, image files and other multimedia duplicates? Then DiskState can help you with an easy-to-use wizard to remove those hogging duplicate multimedia files!
Next, DiskState can capture the state of all files recursively in a folder tree. This enables the user to compare old states with newly captured ones. Ideally for detecting changes in files, deleted and added files in a given folder structure.
Reports can be generated to find the oldest files, archive files etc. on a disk volume. Find files edited within a specified time period, files with given attributes like compressed, read-only, hidden and so forth. The whole report generator is fully user-customizable. Adding new reports is simple.
DiskState provides a deletion engine for scheduling cleanups regularly.
A notification can be given, either by a popup window or email, when a volume has reached its level of capacity.
File deletions are SAFE. DiskState can easily restore back the state of cleaned file entries.
A cool tool to extract boot blocks in a multi-boot environment. This is useful if e.g. the Windows 2003 Server installer has erased your Linux boot block. Add Linux, BeOS, OS/2 and over 200 known boot blocks to your Windows NT/2000/XP boot menu in a breeze.
DiskState has various cleanup tools. One example is the "Cover Your Tracks" to remove traces you leave after surfing the web. You can remove traces of your browsing from Internet Explorer, Firefox, Netscape and Opera web browsers. Valuable information can be left intact for malicious users to see and abuse. DiskState can remove this information for you.
Starting with DiskState 3.6, you can put DiskState on your USB drive. That way you can have all your settings and "DiskState Power" with you whereever you go!
All in all, this is a small but powerful tool to analyze and tidy your computer in a nice safe way.

The license of this software is Free Trial Software, the price is $29.95, you can free download and get a free trial.