TreeSize Personal - Version 6.3.6 TreeSize Personal is a powerful and flexible hard disk space manager for Windows XP/Vista/7/8/8.1. Find out which folders are the largest on your drives and recover megabytes on them. TreeSize Personal shows you the size, allocated and wasted space, the number of files, 3D charts, the last access date, the file owner, the NTFS compression rate and much more information for several folders or drives you choose. It also lets you search for old, big, temporary and duplicate files. The application has an intuitive Explorer-like user interface and it is fast and multi-threaded. TreeSize Personal can be started from the context menu of every folder or drive.