If it shows up in Microsoft Device Manager, Try this:
Fix a corrupted Driver...
- Right click on the drive in Device Manager and uninstall the drive ( also select "delete the driver software for this device")
- Shut down your PC completely and unplug the drive.
- Start up your computer, after your computer boots up, plug the drive back in.
* What this does: It will download a fresh copy of the driver software.
If this does not work, The Hard Drive is bad internally, or the PCB board is bad. You can get a donor PCB for this drive, but you have to either swap the firmware chip yourself or send it in so they can replace the firmware chip to match your drive.
Here is a link to a company that does this...
[http://www.onepcbsolution.com/529285450wd.html]