I never had an issue.
So it shows about 2/3rd partitioned and 1/3rd unallocated now in Disk Managment?
I haven't formatted it yet as I want more than 2 TB, which is all it will allow.
I've installed the ASRock 3TB+ Unlocker Utility
but nothing appears to have changed?EDIT:
Restarting the computer fixed it.