WizTree by Antibody Software is a simple, no-frills software tool that helps you detect folders and files that are eating too much hard disk space. Unlike other tools, WizTree is quite fast and presents results almost instantly. And that’s because it reads the MFT (master file table) directly from the NTFS-formatted drives. The graphical display lets you easily locate big files and large assortments of smaller files. By the way, the tool works on all 64- and 32-bit versions of Windows Vista, XP, Windows 10, 8 and 7.