Most Popular Freeware for HDD Diagnostics (MHDD)

mhddMHDD is the most popular freeware program for low-level HDD diagnostics.

MHDD supports these interfaces: IDE, Serial ATA, and SCSI. Also there is a possibility to access USB storage; there are drivers for emulation (USB->SCSI).

This software can make precise diagnostic of the mechanical part of a drive, view SMART attributes, and perform Low-level format, bad sector repair, different tests and tens of other functions.

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