2 TB MyBook WD1140 with data shows up as "unallocated"

[Majora]

Nevermind the fact that I neglected to back up my data because I -assumed- it would be an innocuous procedure. Regardless, I have a bunch of data on the drive and want to recover it. What I did was remove the drive from the enclosure in order to put it as an internal hard drive. I assumed nothing would happen, lo and behold Windows Disk Management says its all unallocated. What could've caused this and how do I fix it?

OS: Win7 Pro 64

[Joe_S]

If this drive came with Smartware the drive has hardware encryption. Even if you get the drive recognized the data will be encrypted.

Joe

[Majora]

Well, that doesn't sound good. the drive didn't come with any smartware that I am aware of but it might've been background stuff. Either way, encrypted sounds the most plausible/likely. Any way to undo that? Or is the data essentially lost for good.

[Joe_S]

Maybe something like EaseUS disk Wizzard http://www.easeus.com/resource/repair-raw-disk.htm Or Recuva http://www.piriform.com/recuva Might help.

Joe

[stj007]

Like Majora, I removed the external hard drive from the case and I'm using a hard drive docking station connected to my laptop to extract the data I want from it. Problem is the data is encrypted, and idea on how to undo the encryption so I can access the data?