I just cloned my 120GB SSD to a 240GB SSD on my Dell Optiplex Win7 64 bit machine. Suddenly Quckbooks and a few other applications are asking me to re-install/reactivate them. Windows itself just flew right along. I would have thought if Quickbooks thought I'd reinstalled on a new machine, Windows would have too. Or maybe it just reactivated automatically. How does all this work? What does the software look at that it thinks I'm installing it on a new machine?