When trying to transfer a book from Adobe Digital Editions 126.96.36.199765 I get the error message E_IO_WRITE Failed to write to destination. The book shows in the Nook folder, but as 0 KB and cannot be found on the Nook device when unplugged. I don't have a problem transfering from ADE with a second Nook I own, just have a problem with this Nook.
I figured it out. I deleted the Digital Editions folder and then transferred the book without a problem. It quite possibly could have been that my daughter had exceeded the storage capacity of her Nook and there wasn't any room on there to transfer the books.