I have a My Book Essential Edition 2.0, serial number WCAU45824339, model/order number WDH1U10000N that I originally used on my Windows XP desktop (AMD Athlon 3200, 4gb mem, Service Pack 3, 500 GB HDD, MSI MoBo). I also have a l Vista laptop that I use it with.
Here’s the story:
Used on the desktop
Used on the laptop
Used on the laptop several times and kept it unplugged from the desktop. (I used it as storage for my music collection as I do some part time DJing.). I haven’t connected to the desktop since december/january (I don’t remember specifically) until today. Now, the MyBook is unrecognized on the desktop.