Select the Start/Computer(right click)/Manage item
-Select the Storage/Disk managament item in displayed window. Select the encrypted drive, right click on it, and choose the Change drive letter and Paths item.
-Remove this drive letter
OR
Download, install, and run the free Easeus Partition Master
http://www.partition-tool.com/personal.html
and see if the Partition Recovery Wizard option can access and move your files somewhere else while you deal with the problems with the device by reformatting and/or repartitioning the drive (and giving yourself full rights and ownership of the new drive/partition). Then you should be able to move your data back to the drives and access it normally (unless there is a problem with the drive or with the drivers, firmware, or software required to run it - but I think you'll run into that problem much earlier if it's the case and then we may have to deal with that before we can do anything else).