I have had this issue since buying the drive, and it only happens with this particular drive. I have a Passport Studio that works flawlessly on USB 2.0.
I have a fresh install of Windows 7 64-Bit, all the drives, including the USB 3.0 Host Controllers, are installed and working correctly. The drive WILL work and IS seen by the system, but in order to get it to work I have to unplug the power from the drive, and then plug it back in. Obviously this is a huge pain in the butt.
If the system is restarted, or even goes to sleep for a prolonged period of time I have to continue with the same stupid routine. Any fixes available for this? Any help would be great.