HDAT2 is a free, open source, portable program for testing and repairing hard disk drives. It is designed to accurately diagnose and fix hard disk drive problems in a fully automated way. It has a number of features including a graphical user interface, support for various hard disk drive technologies, and a comprehensive suite of tests and analysis tools. HDAT2 can detect, diagnose, and fix numerous errors, including bad sectors, lost clusters, and misaligned partitions. It can also be used to create, delete, and format partitions, as well as clone and image entire hard drives. HDAT2 is a valuable tool for anyone who needs to troubleshoot and repair their hard drives.
Discontinued The program is no longer updated since 2011, but it is compatible with Windows 10 and can still be purchased on the official website.