Hi, I am not sure if the topic is still actual, but I found the solution to the "administrators credentials" problem when connecting USB devices. Looking in C:\Windows\setupapi.log there was rows about incorrect C:\Windows\system32\syssetup.dll. This file must have been modified when I was creating n-lite image. I simply replaced this file from flat installation of WinXP and I don't get the credentials window when connecting USB key, USB mouse etc. when the non-administrative user is logged on.