I bought a 1.5 tb WD passport, and used robocopy to copy a bunch of folders from my home laptop (Win7 pro) onto the drive. They're all visible on the home laptop. Now at my office, I want to copy those onto my office computer (Win7 enterprise). I plug it in, usb, and after a while the drivers auto install, and Windows sees it as drive e:. I look at drive e: and it has the original folders that came with the drive, all those that have to do with auto backups etc, but none of the folders I copied. The size of the disk does show as smaller than when fresh (fresh, it read 1.7gb free, now 1.39 gb free), as if it knows there's 300 gb of data there, but it won't show it. I have admin privilege on both machines. Not sure what to do now.