I've read the msfn guide and it says
If you prefer to manually choose a partition during text-mode setup with full control on choice of file system, then make sure you have these lines set as they are under the [Data]and [Unattended] sections in winnt.sif:
If you want to automate this process with exact specifics on drive letters, partition sizes and file systems, you may want to consider using Bart's PE and diskpart.
My situation is that I have 50 PCs with identical hardware and I want to format them monthly using C: (windows) and D: (empty ntfs) [note: drive C: already contains a windows xp installation and I want to format it and clean install]
I understand that diskpart command would require me to boot into windows and Bart PE would require me to boot with the cd on every computer. I don't want to do that, I want the installation to auto-format all my partitions
but no use, setup still says C: drive has already windows installation, and prompt me to delete it.
Is there a way to do this ?????