I recently had the same problem with my install. I ended up modifying the txtsetup.sif with (at the end of the file): [sourceDisksFiles] IASTOR.SYS = 1,,,,,,_X,4,1 [HardwareIdsDatabase] PCI\VEN_8086&DEV_24DF&CC_0104 = "IASTOR" PCI\VEN_8086&DEV_2652&CC_0104 = "IASTOR" PCI\VEN_8086&DEV_27C3&CC_0104 = "IASTOR" [sCSI.load] IASTOR = IASTOR.SYS,4 [sCSI] IASTOR = "Intel® Matrix Storage Manager Driver" And modified the winnt.sif with: \$OEM$\$1\DRIVERS\RAID\INTEL with driver files under this folder. [Data] AutoPartition=0 MsDosInitiated="0" UnattendedInstall="Yes" [unattended] UnattendMode=ProvideDefault OemPreinstall=Yes OemSkipEula=Yes NoWaitAfterTextMode=1 NoWaitAfterGUIMode=1 WaitForReboot=”No” TargetPath=\WINDOWS OemPnPDriversPath="DRIVERS\RAID\INTEL" DriverSigningPolicy=Ignore [GuiUnattended] OEMSkipWelcome = 1 [userData] ProductKey=xxxxx-xxxxx-xxxxx-xxxxx FullName="Yours here" OrgName="Yours here" I hope this helps.