Hi there joma0414,
Sorry that you are facing some issues with your WD drive.
🙁
As Ralsten18 already suggested, you can try using a different cable. You can also attach it to a different system.
In case the issue persists though, my guess would be that the drive is failing.
One thing you can try is to boot up Ubuntu from a CD/flash drive/another external and try to access the drive. Ubuntu seems to handle better HDDs with bad sectors. Here's a thread on that:
http://www.tomshardware.co.uk/forum/267999-32-recover-data-mode
If this does not work, I guess you can try using some data recovery tool for DOS. You can try some OS based ones as well but there is a possibility that your system will hang again. Here's one...