Yes there a Windows 1.0 Pre-DR5 Build as been discover on Nov 14, 2018 by BetaArchive Member ComputerHunter this Build named May 22, 1984 Windows 1.0 Demo Build. It Pre-DR5 build of Windows 1.0. This build is rare because it hard to find Pre-DR5 of Windows 1.0 they are older Windows Builds seen be lost History. This Build is broke and corrupted the only thing intact is DEMO.EXE and TEXT.TXT is text file for older Windows 1.0 Beta Build like Windows 1.0 1983 Comdex Beta Build, TEXT.TXT is half of file but being corrupted. DEMO.EXE half of file is gone and lost to history. There are 5 pictures in May 22, 1984 Windows 1.0 Demo Build are same in Windows 1.0 1983 Comdex Beta Build. These Picture files in this Demo Build are corrupted they don’t open up on Paint. There are same Pic Format as Windows 1.0 1983 Comdex Beta Build. Windows 1.0 DR1 was compile on May 29, 1984 Windows 1.0 DR5. This Demo build could be Early build DR1 of Windows 1.0. This early instincts into Early Windows 1.0 Beta Builds.