Lost some files

I accidentally dragged a folder into the folder of the My Book that looks like h3h5g4j2h4248398492, if you try to open it it says access denied or cant open, but i look at the properties and i can see that my folder is using space in it. Is there any way to get that folder back? Also, does this **bleep** thing have an auto on and off that im missing? It just runs and runs regardless of my computer being turned on or off. Are we supposed to turn it off and on everytime? Every other externam (seagate for the win) that i have used, you plug it in, it boots up, you turn off the computer and it shuts down…why isn’t mine? Im thinking about switching to Sata (mainly because of the huge difference in transfer speed) think it would have any bearing? I would think when the signal cuts from the computer it would shut itself down.

thanks in advance

oh, and is updating the firmware worth it?  What fixes does it include?

Have you tried contacting WD’s Technical Support? I would consider giving them a call about this.

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