Hard disks keep getting bigger and bigger, but somehow we still run out of space. MP3s and other media files are immensely popular–and simply immense. Programs are bigger, and data files are bigger. Windows Explorer isn't much help. It will tell you the size of all selected files in a folder, but nothing about the files in that folder's subfolders.
Enter DiskPie2 a utility to identify the biggest consumers of disk space. Pie charts let you see at a glance which folders and file types are taking up the most space. The charts are highly customizable, and can be printed.
An Explorer view lets you navigate to the folder you want to chart, and as a bonus displays the number of bytes in and below the selected folder. DiskPie2 also can display and print a report of the largest files in the selected folder. Armed with the information that DiskPie provides, you can decide how best to allocate the space on your disk.
TreeSize: Every hard disk is too small if you just wait long enough. TreeSize tells you where precious space has gone to. TreeSize can be started from the context menu of a folder or drive and shows you the size of this folder, including its subfolders. You can expand this folder in Explorer-like style and you will see the size of every subfolder. Scanning is done in a thread, so you can already see results while TreeSize is working. The space, which is wasted by the file system can be displayed and the results can be printed in a report. TreeSize is Mailware for Windows 9x/NT/2000/XP.