Hello, I'm trying to do an unattended install of win7 pro x64. I am getting an error that the answer file <disk configuration> section can not be applied. I've checked in bios and if disk0 matches sata0 channel 0 then it should work, unless there's an error in my unattend file. Here's the disk info block: <DiskConfiguration> <Disk wcm:action="add"> <DiskID>0</DiskID> <!-- Format partition 1 of disk 0. --> <ModifyPartitions> <ModifyPartition wcm:action="add"> <!-- Do not Extend partition 1 of disk 0. --> <Extend>false</Extend> <Format>NTFS</Format> <!-- Change letter of partition 1 of disk 0 from f to c. --> <Letter>C</Letter> <Order>1</Order> <PartitionID>1</PartitionID> <Label>Windows 7</Label> </ModifyPartition> </ModifyPartitions> </Disk> <WillShowUI>OnError</WillShowUI> </DiskConfiguration> <ImageInstall> <OSImage> <InstallTo> <DiskID>0</DiskID> <PartitionID>1</PartitionID> </InstallTo> </OSImage> </ImageInstall> This is the second pass with this file. I had atempted this yesterday, with only one change the extend line was set to true so I was thinking the partition would take up the entire physical drive. That gave an error about the extend line so I set it to false which is where it is now. And I'm getting the error about being unable to apply the disk configuration. I'd appreciateany suggestions. Thanks. Dave.