MHDD
OS & Utilities
Diagnostic Utility
MHDD is a classic freeware diagnostic tool for hard disk drives, supporting IDE, SATA, and SCSI interfaces. It provides low-level access for advanced analysis, surface scanning, S.M.A.R.T. monitoring, and bad sector management, making it a valuable utility for data recovery and drive health assessment.
Free
Provides true low-level hardware access to hard drives.