Windows NT 4 went on sale 30 years ago today

On August 24, 1996, Microsoft Windows NT 4.0 made its retail debut, marking the 30th anniversary of the operating system today. Also known as "Tukwila," this version aimed to fulfill the objectives of Microsoft's long-standing Windows NT project. Prior to its release, NT 4 had been manufactured on July 31.

Windows 95 had previously launched exactly one year earlier on August 24, 1995. Initially planned as "Windows 4," Windows 95 underwent numerous revisions and iterations, leading to significant changes in its desktop shell. Early versions lacked features such as program minimization to the taskbar, and the prototype Start Button had limited functionality. However, by 1996, the Explorer desktop had matured enough to launch.

Despite its improvements, NT 4 faced some challenges. Microsoft decided to integrate the Explorer desktop from Windows 95 onto the NT kernel, a decision driven by the need for a more responsive interface. This integration allowed systems with sufficient hardware to benefit from both the stable NT operating system and the modern Explorer desktop.

However, the approach came with its drawbacks. NT 4's 2D graphics rendering subsystem was moved to the kernel, potentially causing display driver bugs that could crash the OS. Moreover, the operating system lacked support for the FAT32 filesystem and USB interface, which were introduced in subsequent Windows 95 releases. Despite these limitations, Windows NT 4 proved to be a solid solution, combining a robust OS core, server capabilities, and an intuitive GUI.

This launch signaled the beginning of the end for Novell NetWare, as Microsoft's Windows NT began to deliver on its promise.