Heres how my winnt.sif file starts and the problem that i'm running into is that it will still prompt me to manually choose what to format. I was able to by pass that with my XP unattened install without any problems automatically formating the drive. Is there an extra line or something that I need in order for it to partition without prompting?

;SetupMgrTag

[Data]

AutoPartition=1

MsDosInitiated="0"

UnattendedInstall="Yes"

[unattended]

FileSystem=ConvertNTFS

UnattendMode=FullUnattended

OemSkipEula=Yes

OemPreinstall=Yes

TargetPath=\WINNT

[GuiUnattended]

AdminPassword=its

AutoLogon=Yes

AutoLogonCount=1

OEMSkipRegional=1

TimeZone=20

[userData]

still having this problem.. can anyone give some advice?

MsDosInitiated="0"

UnattendedInstall="Yes"

There should not be " around the data, you use them when there are spaces in the values that you put in. (however i dont think that it stops it from working)

[unattended]

Repartition = Yes

and remove

FileSystem=ConvertNTFS

Repartition will blow the partitions away and automatically format the new on using NTFS