Windows became most widely used GUI

By 1993, Microsoft Windows had become the most widely used graphical user interface operating system globally, following the strong adoption of Windows 3.1 after its release in April 1992. Microsoft reported more than 25 million licensed users of Windows by 1993, reflecting rapid deployment across personal computers in business and home environments. Windows 3.1 introduced improvements such as TrueType fonts, enhanced memory management, and broader application support, which helped expand the Windows software ecosystem and accelerate migration from text-based MS-DOS interfaces to graphical computing. Microsoft expanded its operating system lineup during 1993 with the release of Windows NT 3.1 in July 1993. This version represented Microsoft’s first 32-bit operating system designed for professional workstations and servers, built on a new architecture independent of MS-DOS. Windows NT 3.1 supported features such as preemptive multitasking, hardware abstraction, and improved security models. In the consumer and small business segment, Microsoft released Windows for Workgroups 3.11 in November 1993, adding 32-bit file access, improved networking, and better performance for peer-to-peer network environments. The year also included broader product expansion beyond operating systems. Microsoft launched Microsoft Encarta in 1993, a multimedia encyclopedia distributed on CD-ROM that combined text, images, audio, and video content for personal computers. The company also introduced the Microsoft Home brand for consumer software products. Meanwhile, a long-running copyright lawsuit filed by Apple Computer over the graphical “look and feel” of Windows concluded in 1993 when a U.S. federal court largely ruled in Microsoft’s favor, determining that most of the disputed interface elements were either licensed or not protectable under copyright.