Windows is a computer operating system developed by Microsoft. It was first launched in 1985 as a graphical operating system built on MS-DOS.

Jun 1, 2025 · Comprehensive list of Microsoft Windows versions, offering insights on every release with help identifying your version and understanding system compatibility.

Although Microsoft claimed Windows 10 would be the last Windows version, eventually a new major release, Windows 11, was announced in 2021. That made Windows 10 last longer as Microsoft's …

The following is a list of versions of the Microsoft Windows operating system: Windows 11, released in 2021 Windows 10, released in 2015 Windows 8.1, released in 2013 Windows 8, released in 2012 …

Nov 20, 1985 · However, Windows has persevered, and as of 2024 it is the most widely used OS in the world, accounting for almost 70 percent of the market. Here is a list of every version of Windows (not …

Apr 30, 2026 · Windows versions list: learn Windows release history from 1.0 to 11 with dates, key changes, and timelines—find the right version faster.

Oct 4, 2021 · This module explains Windows editions' features, reasons to choose them, and installation methods. Learners will understand various Windows versions and their installation processes.

Feb 12, 2024 · A list of Windows versions with their true version numbers. Also here are the Windows build numbers associated with major updates, if available.

List of versions. Community content is available under CC-BY-SA unless otherwise noted. List of versions. Version history Windows 10 version history Windows 11 version history.

The first five versions of Windows – Windows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 – were all based on MS-DOS, and were aimed at both consumers and businesses.