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I just got back to my computer and tried running CrystalDisk but it isn't seeing the drive -- getting a Code 43 error even though I followed the instructions from Windows 7 for handling a Code 43 (troubleshooter, uninstall driver, reboot, etc). I also consulted the website you sent me and they ...

Thanks! I'll try CrystalDisk when I get back to my computer at home and read up a bit more. What's the risk of introducing further errors or other issues into the disk by running CrystalDisk on it?

I used the 32-bit version of 6.14 and here's the list of drives that came up:
Disk /dev/sda - 640 GB / 596 GiB - WDC WD64 00AAKS-75A7B
Drive G: - 250 GB / 232 GiB - WDC WD25 00JB-00GVC0

It's Drive G that's giving me problems and I'm trying to restore. Disk /dev/sda is good (so far).

Is there any way of figuring out the correct geometry? Let me double check to see if I'm using the actual 64 bit version. The one I've got highlighted I'm sure is my actual disk but let me make sure. Thanks!

I have a 250 GB external USB hard drive that I can't access my data to anymore. My computer (Windows 7 Service Pack 1 64 bit) acknowledges its presence but I can't see anything on it. It was originally used for a Windows XP computer from 2003-2009 and on the Windows 7 computer ever since and it has ...