so I have a external 1tb WD elite. I went into permissions and changed them around trying to make it so only I could see the files. In doing so, I made all files, under all groups read only, in doing so I had the "take ownership" and "assign permissions" boxes uncheck on each group "owner", "system", "everyone". so now I can load the hard drive, and can open it, but trying to select a file I get a message saying I do not have permission to view the files... HELP!!!