I got a little problem. I try to install WIndows XP Pro Unattended without having to select a partition and format the drive. I try the put the Repartition=No command but when setup start, he ask me to select the partition i want to use and in which format i will like to format my HD... Here is the code of my winnt.sif ;SetupMgrTag [Data] AutoPartition=1 MsDosInitiated="0" UnattendedInstall="Yes" [Unattended] UnattendMode=FullUnattended OemSkipEula=Yes OemPreinstall=Yes UnattendSwitch="yes" TargetPath=\WINDOWS WaitForReboot="No" Repartition=No OemPnPDriversPath="drivers\lan;drivers\sound\" DriverSigningPolicy=Ignore FileSystem=* [GuiUnattended] AdminPassword= EncryptedAdminPassword=NO OEMSkipRegional=1 TimeZone=35 OemSkipWelcome=1 [UserData] ProductKey= FullName="" OrgName="" ComputerName= [Display] BitsPerPel=32 Xresolution=1024 YResolution=768 Vrefresh=85 [TapiLocation] CountryCode=107 Dialing=Tone AreaCode=450 [RegionalSettings] LanguageGroup=1 SystemLocale=00001009 UserLocale=00001009 InputLocale=1009:00000409 [Identification] JoinWorkgroup= [Networking] InstallDefaultComponents=Yes [Components] msmsgs=off msnexplr=off [Shell] DefaultStartPanelOff = Yes DefaultThemesOff = Yes [WindowsFirewall] [WindowsFirewall] Profiles = WindowsFirewall.TurnOffFirewall [WindowsFirewall.TurnOffFirewall] Mode = 0 Did i do something wrong in my command line??? If i put the AutoPartition=1 command do i have to put the Repartition=NO command line? . Please help me....