I hope I can get an answer here. I've been looking for 3 days to try to find a way to add my passport to my unattended installation. Found a great deal of documentation on how to get rid of that little balloon asking to register a passport, however actually Adding the passport seems to be completely undocumented. Ideally, I would like to add 2 or 3 passports, but cannot figure it out. Any help is appreciated.