I'm experiencing the same problems, when using untrusted user accounts. As soon as I let nLite 1.3.5 integrate drivers into the source, any USB device moved or inserted will end up prompting the "Found New Hardware" dialog. However, If I integrate the drivers otherwise (e.g. using setupcopyoeminf.exe at T-39), all is fine. I Started with a clean Windows XP source and let nLite do the following in one run: - SP2 integration - post-SP2 security hotfixes and KB888111 integration ...and yes, the advanced option to remove the catalog files is not enabled. - multiple drivers integration What can be causing this behavior?