annoying Welcome to Windows

[Kaspin]

this thing just won't go away...

here's my winnt.sif

;SetupMgrTag
[Data]
    AutoPartition=1
    MsDosInitiated="0"
    UnattendedInstall="Yes"
    AutomaticUpdates=1

[Unattended]
    UnattendMode=FullUnattended
    OemSkipEula=Yes
    OemPreinstall=Yes
    TargetPath=\WINDOWS
    Repartition=Yes
    WaitForReboot="No"
    OemPnPDriversPath="Drivers\"
    DriverSigningPolicy=Ignore

[GuiUnattended]
    AdminPassword=*
    EncryptedAdminPassword=Yes
    OEMSkipRegional=1
    TimeZone=4
    OemSkipWelcome=1

[Display]
    BitsPerPel=32
    Xresolution=1024
    Yresolution=768

[UserData]
    ProductKey=YARIG-HTLIK-EIMTE-LLING-YOU!!
    FullName="Kaspin"
    OrgName=""
    ComputerName=

[TapiLocation]
    CountryCode=1
    Dialing=Tone
    AreaCode=800

[Identification]
    JoinWorkgroup=WORKGROUP

what am I doing wrong?

[ToBe]

Add this:

[Unattended]
 UnattendSwitch="yes"

If you had done search for it, you would have seen this question answered many times....