WD2 Tb Drive will not fully recognize

yeah so it does show in Diswk Management but in order to navigate the drive I need to format it but I don;t wnat to do that because I am trying to  extract data that is currently on it.

I bought the drive as an HP simple Save drive.  There proprietary S/W sucked and got corrupted not allowing me to access the drive.  I consequently, opened the casing and  took the drive out.  Turns out it is just a WD 2.0 TB Drive.

Jamie8