One Dev Story: Patrick Abadi - A Windows Insider

The 'One Dev Question with Raymond Chen' video series is part of the One Dev Minute channel. In this series, longtime Microsoft developer and semi-official Windows historian Raymond Chen covers a series of questions about Microsoft Windows development, team culture, and/or history. If you have additional questions for Raymond, please add your questions in the comments section below. You can also find out more development details about Windows and its history on Raymond's blog.
How long does it take to build the Windows kernel and a full system install image?
I would like to ask Raymond, where is the first build of Windows NT (aka build 1)?
Why not reset the build number after each major version bump?
You don't have unlimited numbers, the version number in the PE version resource is 16 bits per field.