Windows 3.x/3.00 RC6

Windows 3.0 Release Candidate 6 is a pre-release version of Microsoft Windows 3.0 from 7th March 1990. It became available on BetaArchive on 2nd June 2015. It was found in old warez archives labeled as "production release" (or simply RTM), but it is about month or two older than the RTM build. It also has several file differences from the final release.