Operating System Utils
Speed Testing
Current Highlights
Follow us on Facebook

HDAT2 5.0

HDAT2 is program for test or diagnostics of ATA/ATAPI/SATA, SSD and SCSI/USB devices.
It will not execute in a DOS session under Windows. You should make a DOS boot floppy disk or CD/DVD and boot your system for it and execute this program from that floppy disk or CD-ROM. HDAT2 program has 2 levels:

  • Drive level testing - main function is testing and repair (to regenerate) bad sectors for detected devices
    - you get much information about detected devices

  • File level testing - read/find/check items (MBR, boot, directories, etc.) of file system FAT12/16/32

    • - check/remove (regenerates) bad sectors records, flags in FAT table


    • fully implemented commands: SET MAX, SET SECURITY, Device Configuration Overlay (DCO)

    • device access with interrupt 13h, direct via ATA ports, with ASPI drivers

    • detects ATA/ATAPI/SATA devices with on-board and add-on controllers

    • detects devices on AHCI/RAID controllers (just only on ports 0-3)

    • detects USB devices via USB ASPI driver or BIOS (if supported)

    • detects SCSI hard drives via BIOS interrupt 13h or ASPI drivers

    • other SCSI devices are detected via ASPI drivers only (must be loaded before);
      with ASPI drivers you will get more information about SCSI devices

    • test and repair device for bad sectors (so far version 4.5.3 only)

    • many different test-functions for hard drives
    • resize hard drives which supports SET MAX ADDRESS/EXT
      (supports 28/48-bits LBA addressing modes)

    • drive lock detection via security feature (Security Menu)

    • S.M.A.R.T. functions for ATA/SATA and SCSI drives only

    • information about devices (ATA/ATAPI, BIOS interrupt 13h, ASPI, EDD)

    • sector viewer for devices (also for USB, ZIP, CD-data discs)

    • to access ATA/SATA CD/DVD drive you don`t need any driver or MSCDEX

    • enable/disable some features for direct-access devices
    • Device Configuration Overlay (DCO) feature set
    • (you can restore a full capacity or allow/disallow some feature sets of hard drive)

User's rating:

  • Currently 2.76/5
  • 1
  • 2
  • 3
  • 4
  • 5
Enlarge the screenshot of HDAT2
[ Enlarge Image ]
Download 4.2MB HDAT2

Download Direct

(4.2MB, Extension: EXE)

Download alternate to HDAT2 solution

Look at the free or trial alternatives and similar apps to HDAT2 software by the tags. It's possible also to find substitutes for the most popular titles in the Operating System Utils category.

| Usb | Unlock | Ssd | Smart | Size | Set | Sector | Scsi | Satapi | Repair | Pio | Password | Overlay | Native | Max | Lba | Frozen | Dma | Disk | Device | Dco | Configuration | Bad | Address | 48-bit | 28-bit |

History updates (Complete changelogs since the listing on this site)

5.0 [12-17-13]

Other versions : 4.9.3 4.9b1 4.8.1

v4.9.3 [01-05-13]

v4.9b1 [08-27-12]

v4.8.1 [12-29-11]

Average review rating :

Useful independent reviews and opinions of the users

Review HDAT2Write a review « Be the first to post a review for HDAT2 download!

Predicted future versions and notices:

The constantly monitors the update of all programs, including information from the HDAT2 5.0 changelog file, however sometimes it can happen that data are not complete or are outdated.We assume that author continue's to develop 5.1 version with further advanced features, and soon you will be informed. Equally important 6.0 upgrades of the program we will continue to monitor. Full HDAT2 description has been compared with the overall software database and our algorithm has found the following applications (are showed below).