The founder associated with the creation of the Windows operating system is Bill Gates, cofounder of Microsoft Corporation, along with Paul Allen, who co- founded Microsoft with him. Bill Gates played a key role in guiding the development of Windows, which was first released as Windows 1.0 in 1985 as a graphical user interface extension for MS-DOS. The creation of Windows was part of Microsoft’s broader mission to make personal computing accessible to average users, transitioning from early programming languages for microcomputers to full graphical interfaces.