You say there's no data on that 1 TB HDD. If that's the case why don't you just delete the partitions and format the drive in Disk Management. Better yet, use Diskpart to invoke the "clean" command to empty the disk of all data. Then you can start over using Disk Management to initialize, partition, and format the drive. If you don't know how to use the Diskpart utility do a Google search on "using the Clean command in Diskpart". You should learn about using this valuable tool for future reference if you don't already know how to.