Windows is a proprietary operating system (OS) developed and marketed by Microsoft. It features a graphical user interface (GUI) that allows users to interact with their computers using visual elements like icons, windows, and menus. Initially released in 1985 as a GUI extension for MS-DOS, Windows has evolved into a comprehensive OS that caters to various sectors of the computing industry, including personal computers, servers, and embedded systems. Windows is offered in multiple editions, such as Home, Professional, Education, and Enterprise, to suit different user needs.
Key features of Windows include multitasking, file management, and compatibility with a wide range of software and hardware. It also offers features like the Start Menu, Taskbar, File Explorer, and Cortana, a virtual assistant. Windows also provides security features like user account management, Windows Defender (antivirus), and Windows Firewall. The latest versions, such as Windows 11, emphasize a user-friendly design, faster operating speeds, and integration with Microsoft services like OneDrive and Microsoft accounts for seamless syncing across devices. As of January 2026, Windows 11 is the most used version of Windows, accounting for 62% of the worldwide market share.
Windows is available as a consumer retail product and is also bundled with systems by computer manufacturers. The pricing varies based on the edition and license type (OEM vs. Retail). For example, Windows 11 Home is priced at $139, while Windows 11 Pro costs $199 when purchased directly from Microsoft. OEM licenses may be available at slightly lower prices from retailers like Amazon and Newegg. Keep in mind that prices can fluctuate and may depend on promotions or specific vendor offers.
The most recent versions of Windows 11 are 26H1 and 25H2, both released on February 10, 2026. Microsoft has adopted a servicing model where feature updates are released annually, typically in the second half of the year, along with monthly security updates. These updates ensure that devices remain protected and benefit from the latest enhancements.
