https://coolthingoftheday.blogspot.com/2006/09/missing-base-vhd-base01vhd-from-orcas.html
Missing Base VHD (Base01.VHD) from Orcas September CTP VPC... (Make sure you ALSO download the...
I'm RTFI now, but it looks like there's an issue with the Visual Studio Orcas CTP Virtual PC image download. It downloads fine and extracts...