Today.the icon for the unlocker appeared. On Monday My Computer showed the drive, then yesterday the icon for the drive was gone. I installed the drive and did the first back up, applied a password, and registered the drive. I had some problems yesterday and posted on the WD Forum but as of awhile again had no answer, so thought I would try here as I would think that some users are familiar with these drives.
I installed a 320 GB My Passport Essential external hard drive.