I've recently changed computers, and when trying to download onto laptop, first attempt got to the point of finishing the process, then got a windows detected a problem message, and got kicked out of it. Second attempt, almost got to that same point. Got a message saying 'system has not been modified'. At one point, (not sure now where I saw it, I've looked all over my computer at this point, but perhaps a dialog box) I saw an error code 28. I'm running windows 7, had used XP the last time it was installed I believe. Any help is appreciated!