With a sony vista laptop, I have usbed the BIAB 2010.5 Everything Pak. in J + a 500 GB Seagate in G. Opened the BIAB hd, Mouse the BB and drag it to the Seagate. Every file was transfered perfectly. I can operate each hd at will. I didn't install either to the pc. The 2011 update was installed on both HD's. I can hook either hd to the other sony lap top and it works fine. Leon