Me again. Would you know how to make Vista install itself on any size hard drive? So far, I can make wipe out all partitions, create 1 partition, & install vista on it but I need to enter the hard drive capacity for this to work. This method for me will not work if I have systems with different hard drive capacities. Here's what I use so far for a hard drive that has 149GB: <InstallToAvailablePartition>false</InstallToAvailablePartition> <WillShowUI>OnError</WillShowUI> <InstallTo> <DiskID>0</DiskID> <PartitionID>1</PartitionID> </InstallTo> </OSImage> </ImageInstall> <DiskConfiguration> <Disk wcm:action="add"> <CreatePartitions> <CreatePartition wcm:action="add"> <Order>1</Order> <Size>149000</Size> <Type>Primary</Type> </CreatePartition> </CreatePartitions> <ModifyPartitions> <ModifyPartition wcm:action="add"> <Active>true</Active> <Extend>false</Extend> <Format>NTFS</Format> <Label>Vista</Label> <Letter>C</Letter> <Order>1</Order> <PartitionID>1</PartitionID> </ModifyPartition> </ModifyPartitions> <DiskID>0</DiskID> <WillWipeDisk>true</WillWipeDisk> </Disk> </DiskConfiguration>