Microsoft Windows NT 4.0 Service Pack 6a (Intel) with Standard Encryption

Name: Microsoft Windows NT 4.0 Service Pack 6a (Intel) with Standard Encryption
Rating: 5 (1 reviews)
Author: Microsoft

Download now

Used Microsoft Windows NT 4.0 Service Pack 6a (Intel) with Standard Encryption for Windows?

Windows NT 4.0 Service Pack 6a (SP6a) resolves the SP6 issue with Lotus Notes and other Winsock based applications and provides the latest updates to Microsoft Windows NT Workstation 4.0 and Windows NT Server 4.0 (including 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) platform. If you are unsure whether your NT 4.0 system needs this service pack, refer to Microsoft's documentation.

Editors’ Review

Download.com staffFebruary 25, 2026

This service pack provides crucial updates for Windows NT 4.0 Workstation and Server, including Y2K fixes and improved application compatibility.

Pros
- Resolves SP6 issue with Lotus Notes and Winsock applications
- Provides latest updates for NT 4.0 Workstation and Server
- Includes known Year 2000 updates
- Offers standard encryption capabilities for Intel x86 platform
Cons
- Platform limited to Intel x86
- Requires user to consult documentation for necessity