WD MyBooks are hardware encrypted
So, if you remove the hard drive from the MyBook enclosure you won’t be able to access the data on it.
If you don’t care about losing the data, then go ahead and format it and it will/should work fine
If you do care about the data then you’ll need to decrypt the drive. I’ve never done it myself, but apparently it is possible using Linux.
Foirum post about the subject here
did that drive come out of a MyBook enclosure ? probably not, i’m guessing
