They do have a diagnostic tool, you can find it on the official website. Other than that I've heard of similar problems with drives after being used in a dvr, which might be just a coincidence. See if the diagnostic tool recognizes the drive and share the results. If you don't have another PC available where you can try the drive (although that would be helpful to see what happens in this case), you could try connecting it externally to your laptop with a SATA to USB cable to see if the same thing happens. You could try and reformat it to see if that fixes the problem (if it's recognized when connected externally), just note that this will delete your data.