ok prior to reading this thread, i tried to merge my winnt.sif (unattended) with the winnt.sif which is created by the program. i have exactly the issues described above. here (http://www.msfn.org/board/install-usb-winsetupfromusb-gui-t120444.html) in the first post it is mentioned that presetup.cmd is taking care of this problem. however i can't find any indication regarding the unattend issue. my presetup.cmd looks like this: SET TAGFILE=\$WIN_NT$.~LS FOR %%h IN (U D M N O P Q R S T V W X Y) DO IF EXIST "%%h:%TAGFILE%" SET CDDRIVE=%%h: if "%CDDRIVE%" == "" ( FOR %%h IN (C E F G H I J K L) DO IF EXIST "%%h:%TAGFILE%" SET CDDRIVE=%%h: ) REM ===========Added by WinSetupFromUSB============ IF EXIST %systemroot%\system32\setupold.exe DEL /F %systemroot%\system32\setupold.exe IF EXIST c:\boot.003 DEL /F c:\boot.003 REM ====================END======================= EXIT so here is my question: since i cannot use the [unattended] section in winnt.sif, where can i specify those values, settings, etc. ?? any hint? thx