Mainstream support for Windows NT 4.0 Workstation ended on June 30, 2002, following by extended support ending on June 30, 2004.

Workstation, server and embedded editions were sold, and all editions feature a graphical user interface similar to that of Windows 95, which was superseded by Windows 98 and could still be directly upgraded by either Windows 2000 Professional or Windows Me. It was Microsoft's primary business-oriented operating system until the introduction of Windows 2000. It is the direct successor to Windows NT 3.51, and was released to manufacturing on July 31, 1996, and then to retail on August 24, 1996. Windows NT 4.0 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses. Security updates were available until Decem It allowed users to purchase security updates for 3 years, in early installments. asp (archived December 2006)Īll editions were eligible for the paid Extended Security Updates (ESU) program. Windows API, NTVDM, OS/2 1.x, POSIX.1, SFU (SP3+) A screenshot of Windows NT Workstation 4.0 SP6a, showing the Start menu and Windows ExplorerĤ.0 SP6a with Post SP6a Security Rollup (Build 1381) / July 26, 2001 21 years ago ( )

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