Microsoft is the American technology company behind Windows, the most widely used desktop operating system in the world. Founded in 1975 by Bill Gates and Paul Allen and headquartered in Redmond, Washington, Microsoft released the first version of Windows in 1985 as a graphical interface for MS-DOS. Since then, the Windows family has evolved through landmark releases such as Windows 95, XP, 7, 10, and the current Windows 11, adapting to shifting market needs with each generation.

The Windows division oversees core system development, user experience, built-in productivity tools, and the broader application ecosystem. Windows is distributed globally and powers the vast majority of personal computers in homes, businesses, and educational institutions.