My Book Essential - Works on Mac, can't see on PC

The drives use different formats I guess you could call them file systems. I don’t know much about Macs most software for this is pay. I did see this free one http://www.catacombae.org/hfsx.html Do you intend to use the drive on both Mac and Windows? If not you can simply reformat it for Windows NTFS that will wipeout all data on it.

Joe