Fail to initialize Hard drive Black 4003fZex 4t

Hi I have been failing to initialize a new Hard drive Black 4003fZex 4t on a windows 7, the system already has a 3tb installed

  1. Have the drive cleaned and convert to GPT using diskpart.
    Some further info/examples on how to use diskpart:
    a. DiskPart Command-Line Options - Microsoft TechnNet
    b. Disk Administration, DiskPart - SS64
    c. Use Diskpart to clean and prepare a disk

  2. Download WD Data Lifeguard Tools and have the disk checked and level format by following instructions at