Microsoft Windows

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Microsoft Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for servers, and Windows IoT for embedded systems. Defunct Windows families include Windows 9x, Windows Mobile, and Windows Phone.

Quick facts: Developer, Source model, Initial release, Lat...
Microsoft Windows
Source model
Initial releaseNovember 20, 1985; 37 years ago (1985-11-20)
Latest release22H2 (10.0.22621.1778) (May 24, 2023; 13 days ago (2023-05-24)[1]) [±]
Latest preview
Release Preview Channel

22H2 (10.0.22621.1778) (May 24, 2023; 13 days ago (2023-05-24)[2][3]) [±]

Beta Channel

22H2 (10.0.22631.1830) (June 1, 2023; 5 days ago (2023-06-01)[4]) [±]

Dev Channel

10.0.23471.1000 (June 1, 2023; 5 days ago (2023-06-01)[5]) [±]

Canary Channel
10.0.25381.1 (June 2, 2023; 4 days ago (2023-06-02)[6]) [±]
Marketing targetPersonal computing
Available in110 languages
Update method
Package managerWindows Installer (.msi, .msix, .msp), Microsoft Store (.appx, .appxbundle),[7] Windows Package Manager
PlatformsIA-32, x86-64, ARM, ARM64
Previously: 16-bit x86, DEC Alpha, MIPS, PowerPC, Itanium
Kernel type
user interface
Windows shell
LicenseProprietary commercial software

The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs).[8]

Windows is the most popular desktop operating system in the world, with 75% market share as of April 2022, according to StatCounter.[9] However, Windows is not the most used operating system when including both mobile and desktop OSes, due to Android's massive growth.[10]

As of September 2022, the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers.