Low-level Hard Drive Diagnostics Freeware: MHDD
MHDD is the most popular freeware application for low-level HDD diagnostics.
Interfaces Supported:
MHDD supports these interfaces: IDE, Serial ATA, SCSI. Also there is a possibility to access an USB storage, there are drivers for emulation (USB->SCSI).
What can MHDD do?
This software can make precise diagnostic of the mechanical part of a drive, view SMART attributes, perform Low-level format, bad sector repair, different tests and tens of other functions.
Platform:
· Intel Pentium or higher CPU
· 4 megabytes of RAM
· DR-DOS, MSDOS version 6.22 and higher
· Any boot device (USB, CDROM, FDD, HDD)
· A keyboard
IDE/SATA Controllers:
· Any integrated into motherboard…
MHDD is the most popular freeware program for low-level 

