HDAT2: testing and repairing a HDD. Before using HDAT2, check the Smart status (technology of self-control, analysis and diagnosis of HDD). If it is orange or red, scan with HDAT2. Be sure to make a Backup from your hard drive to avoid data loss.

HDAT2: testing and repairing a hard disk How to use it?

HDAT2 does not work directly In Windows, it must first be recorded on a CD / DVD to open on PC startup in a DOS environment. Its main function is to test and repair bad sectors detected on the disks. It also allows you to get detailed information about recognized devices.

How to burn the ISO image

For, Record the picture ISO, download BurnAware Free Edition.

How to boot with CD / DVD

First, you need to find the startup key, usually the F12 key. Then you need to choose the player that contains the CD / DVD. You do not need to change the boot order in the BIOSas it is the hard drive that should start first by default.

How to get started with HDAT2

You will see a menu with the disc version. Please note that this tutorial was made with version 5.0. For a traditional IDE / SATA hard drive, select (1) only the PATA / SATA CD driver (default). If you don't know, select (4). A DOS page (black) is initialized and blank text appears. Can write:

(PATA) X:>

. Kind:


use the keyboard QWERTY and


guidance on run the program

Then choose Sata, that is, the disk you want to repair. You can view by size or model of hard drive. It may be that HDAT2 intelligently marks (wrong error) in red and that, in fact, with the manufacturer's tools this is not the case, that is, it may be wrong, you must first verify it, as said at the beginning of the suggestion . The key D allows you to detect / reset hard drives.

How to test and repair a disk with HDAT2

Select first Device test menu. All tests with WRITE can cause data loss, so we have two options: just test the hard drive with the menu option.

Detect bad sectors: You are aware of the possible risk of data loss and try to repair it with the menu option.

Detect and repair bad sectors.

If you want to continue with the repair, select Fix with verify / write / verify. Okay, now just wait for the scan to be done.

If everything goes well and the program detects bad sectors, it will regenerate them. In fact, you must put the bad sectors at the end, which decreases the size of the hard drive, depending on the number of errors.

If everything is fixed, run a second scan, but this time with the menu Bad sector detected without write. If you find bad sectors again, it is because the hard drive has no chance of recovery. Since everything is generally fine, it allows you to repair bad sectors and revive your hard drive.