I'm back.

I did not say this drive came out of a Western Digital 1 TB drive. This is one of two drive in the case.

After the format I copied 9GB to the drive when it hung again.

Disk Management could not read any drives so I powered off the USB drive. DM read the C and D drives. DM then read the USB drive F when i powered it on.

DM reported disk 5 (USB F:) as 465.76 GB NTFS (Healthy Primary Partition). I then changed it to Active.

It is running fine now. I will report back within 12-24 hrs.