I apologize as I know this has been addressed a ton of times but I still don't see any responses that really work. I have a couple 2tb drives (they did not come with software) and some usb drives. I used to use the U3 on the sandisk drives and I'm looking for something very similar. Since there are SO many files on the drives, it would take forever to encrypt. I'm basically just trying to find a way to make an external hdd password protected and trying to find something similar to U3 for my flash drives.