Windows 1.0 Preliminary Version 0.50

Windows 1.0 Preliminary Version 0.50 is a pre-release build of Windows 1.0. BetaArchive member ComputerHunter found the logo file for this build on disk 3 of Premiere Edition on 2020-06-19. The file  (similar to   in later builds) was recovered, as well as part of a fragmented , which includes   and.

This build may have been made around early 1985-06, based on 's features and strings, other files found alongside it (including an earlier version of the Calendar program found on Premiere Edition and later), and directory entries found on a Tandy 2000 disk.