SeaTools is a diagnostic testing utility for hard drives of any make.
The CD you create from the SeaTools image file contains that testing utility.
Boot your PC from that CD and SeaTools for DOS will appear on the screen after a few minutes.
Select your hard drive in the SeaTools screen, then choose Short Test or Long/Extended test
SeaTools does not need Windows and if your hard drive is faulty SeaTools will tell you.