The Book unrecognized

My computer will not recognize the external WD storage device.  It tries but the icon flickers on and off until the device locks. System is 64 bit…I have downloaded the driver.  Help!  

There could be some sort of corruption on the drive.

Does the same behavior occurs if you try a different computer?

See if is possible to run a test using Data Lifeguard Diagnostics.

How to test a drive for problems using Data Lifeguard Diagnostics for Windows