I've taken the autounattend.xml that was posted in this thread. I've added a few things to it to fit my needs, like killing UAC, setting time zone, disabling Windows Updates, registration information, etc... And it works fantastic on my None-SP1 Windows 7 disc. So I thought about updating the iso to an SP1 disc. I rebuild the iso from scratch from MSDN SP1 discs and put my Autounattend.xml in the root just like I have it on my other disc. UAC is not disabled now, Time Zone is not set, it still asks which network I'm connected it, if i want to enable windows updates, shows the EULA page, etc. So my question is, does autounattend.xml no longer work in SP1 discs period or has the formatting changed?