format D: /FS:NTFS /V:LABEL /Q /Y that will format a second partition without prompting i call it from a normal batch file you would have to set the paritioning to manual though on the xp setup, rest would be unattended so autopartition=0 the winnt.sif can be placed in the I386 folder of the cd no real need for a floppy when you have the answer file as you want it, entry in answer file would be [GUIRunOnce] %systemdrive%\batch_file.cmd where the batch file would have to be called batch_file.cmd and placed in the \$OEM$\$1 folder on the cd. The batch file would contain the first line of this post and on the answer file OEM preinstall would have to be set to yes, take a look at these two links http://unattended.msfn.org/unattended.xp/view/web/19/ http://unattended.msfn.org/unattended.xp/view/web/18/