Also called "Win2K" and "W2K," Windows 2000 was a major upgrade to Windows NT 4, launched in early 2000. Available in one client and three server versions, Windows 2000 added support for Plug and ...

NT did not support Plug and Play, which was later added in Windows 2000 and XP (also based on the NT core technology). Clustering and failover was added to Windows NT 4 Server, Enterprise Edition.

Windows NT 4.0 SP6a contains known Year 2000 updates for Windows NT 4.0. Available to all customers, this version provides standard encryption capabilities for computers running on the Intel (x86 ...