WizTree

disk analysis program

One of the FASTEST Disk Space Analyzers.  46x faster than WinDirStat!  Find the files and folders that are using the most space on your hard drive.  It is free for personal use.

 
 WizTree makes it super easy to find and remove "harrisk spaces" from your hard drive.  The visual treemap helps you quickly find large files and folders by visually displaying the sizes of all your files.