1. Click the "Browse..." button to select a start directory; or just type the directory name in the Start Directory text field and click "Go".
2. Wait while JDU scans the directories and files.
3. Examine the resulting table, which shows how your disk space is being used
- you can click on subdirectories to examine them in more detail, and you can click on the left-most directory to exand your view one level
- hold your mouse over thin directories and files to get details
4. For more information, visit http://jasonpratt.org/software/jdu/