For a thorough and clear answer to the eternal question of where all the space on your new disk went, consult TreeSize Professional. The interface allows you to easily find and delete files that waste space. TreeSize Professional analyzed disk usage quickly in our tests. You can analyze any folder by right-clicking it and choosing the Context Menu command. It displays files and folders both as graphs and as detailed lists. In Visual mode, you can choose between pie and bar graphs, as well as change colors for better legibility. The Detailed view lets you see statistics by user and file type. You can limit the scan to files created in the past however-many days. The program saves results in XML, HTML, and Excel formats, and the extensive functionality makes TreeSize Professional attractive for system administrators.
Every hard disk is too small if you wait long enough. Treesize tells you where your precious clusters have gone. From the context menu of a folder or drive, Treesize tells you the size of this folder, recursively including the subfolders. You can expand this folder in Explorer-like style and you will get the size of the subfolders. It works like the UNIX command "du," but with a Windows 95 graphical user interface. Scanning is done in a thread and the wasted space can be displayed, so it's easy to find areas on the disk where a lot of space is wasted. The results can be printed in a report.
