Disk Space Fan Pro is a nice disk space analysis tool for Windows. It uses the powerful search engine with fast file check to find the duplicate files on your computer. You can delete the duplicate data in a safe way. As a disk space analysis tool, the program helps you to find and delete large, useless files quickly. It takes Ringschart to represent of the disk usage, where segments mean files and folders, proportionally to their sizes. By using filters, you can find the statistics of video, audio, image and other documents easily.