Windows 10 build 10005 (winmain)

Windows 10 build 10005 (winmain) is a build of Windows 10, which was included with the first Azure Stack POC Technical Preview as a compiled Preinstallation Environment. Its  was uploaded to the Internet Archive on 8 August 2022.

Prior to its publication, it was found by BetaWorld users on 30 August 2020. It is the earliest known build of Windows to have a 5-digit build number.