MHDD  a free software for a fast and informative low-level drive diagnostics. 

Makes very fast (up to 20 Gb per 6 minutes) and precise diagnostics of all the surface and heads of the HDD irrespective of the data which is on the diagnosed HDD. 

Allows to get rid of software bad sectors at the highest possible speed. 

The following functions are present: 

The fastest precise diagnostics of a mechanical part of the HDD 
Bad sectors repair 
Monitoring of IDE registers 
Opportunity to physically reduce size of the HDD (HPA function) 
Automatic Acoustic Management  adjusting noise emanation level 
SMART. Running SMART tests and view attributes 
Full HDD erasing 
Low-level sector access 
Functions to manage security system of the HDD 
Warm-up the HDD and test the HDD in extreme conditions 
Packet testing of a set of drives 
Custom ATA and SCSI command sending (ATA/SCSI-Terminal)

Device configuration view/change: max UDMA mode; Security features; recover original drive size etc.

Logging of every operation
And others possibilities 


License: freeware 
