Hello. My My Passport Essential to passed away a month after its warranty. The questions to WD remained unanswered. Despite this casually SAV I ordered the Passport Studio to connect Fire Wire, specialized for Mac but works after formatting to Win7. First confused: no specific backup software for Windows. Work with Windows Backup, Cobian and others. Second confused: it disconnects alone. We must reconnect. I plan to return it. Thank you Western Digital. There you go !!!! WD My Passport Studio, purchased 19 June 2012, is no longer recognized by my computer. He asked me to format it. We Sept. 10 less than three months after the expiry of the two year warranty. Two Western Digital HD slamming me out of time. FINISH WESTERN DIGITAL.