Once you see that the drive is identified by the OS, and you can see icon in your system tray which says external device selected,
- GO to My Computer
- Right click on My Computer
- Go to Manage Tab
- Go to disk management
- You can now see the added external disk partition available witout anything.
- Just right click inside that partition space and say "mount".
- This will change the status for the external disk to "basic" and "online".
- Then once you have mounted the drive, again right click and say format.
- Once you format the drive it will ask you for the drive letter and once the formatting is done your drive would be visible for use.
Enjoy more space