Windows Longhorn Build 3790 〈2025〉

By 2004, the original "Longhorn" project had become an unstable mess. It was bloated with features like the file system and the Plex interface, but it was so buggy it couldn't even reach "Beta 1" status.

Build 3790 (specifically the Lab06_N compile) leaked to the internet in the mid-2000s and quickly became a favorite among vintage OS collectors. Its appeal is straightforward: windows longhorn build 3790