Template:Infobox WindowsBuild Windows 3.0 RC6 is a pre-release version of Windows 3.0 released on 1990-03-07. It became available on BetaArchive on 2015-06-02. It was found in warez archives labelled as "production release" (or simply RTM), but it's month or two older than the RTM build was compiled. It also has some file differences.
