Windows 7 build 6429

Windows 7 build 6429 is an early build of Windows 7. This build was shown by Microsoft in a remote desktop from Windows XP from the DTM-AudioFidelityTestingLocal_Training (dead link) and DTM-AudioFidelityLogs_Training videos. There has been a debate whether this build is a post-RTM build of Windows Vista or an early build of Windows 7. Due to its earliness, the kernel version is still 6.0.

This build is also mentioned in build 6469's setup. In particular, it notes that you can only upgrade if running build 6429 or higher.