External Hardrive Local disk

My External Hardrive shows up like a local disk on my Pc (windows 8). It all started when i put it in my xbox i accdentally formatted my harddrive. SO now when i put it in a computer it will show up as a Local disk. is it possible to format it back?

Yes,

Check on disk management to see how is the drive showing.

Please see the link below to see more information on How to access Disk Management in Windows XP, Vista, 7 or 8 to manage hard drives.

http://wdc.custhelp.com/app/answers/detail/a_id/1284/session/L3RpbWUvMTM5MTAyMjg5OC9zaWQvUW9CZGtDTGw%3D

On the disk management, you will be able to reformat the drive and also you will be able to initialize the unit in case is need to.