Hi, I am very new to this forum & not familiar with the un attended installation. but i need to make one my own. so i have followed the instructions on, one of the other site & i have used "setup manager" to make my answer file. i have done it as per the instructions on that web site & here with attached the "WINNT.sif" file for your reference. My problem is it has not allowed me to select the installation partition. i have already changed "AutoPartition=0" as instructed in this site