Windows NT 4.0 Patches
Windows NT 4.0 is the successor to the Windows NT 3.x release. In this release, the user interface from Windows 95 was integrated, making NT just as easy to use as its consumer counterpart. Internet Explorer was bundled, providing a web browser out of the box. Speed was improved by moving components into kernel-mode, at the expense of security and reliability - changes Windows is suffering from today, and is being reverted. NT 4 was followed up by Windows 2000.
Other Windows Versions:
| 1.0 | 2.x | 3.x | NT 3.x | 95 | NT 4.0 | 98 | 2000 | ME | All |
Release notes
Note: These service packs are freely redistributable, and are only provided here as a convenience.
Unless otherwise noted, archive-only downloads are for i386 CPU systems. Proper CD ISOs contain both i386 and DEC Alpha builds, as well as value-added applications.
Installation instructions
Service Pack 6a is the last Service Pack for NT 4 i386. Service Pack 2 is the last service pack for NT 4.0 PPC. All service packs are applicable to both NT 4.0 Workstation and Server.
There is no need to install previous service packs.
Downloads
| Download name | Version | Language | Architecture | File size | Downloads |
|---|---|---|---|---|---|
 Windows NT 4.0 Service Pack 1 |
4.0 Service Pack 1 Upgrade | English |
|
1.64MB | 1 |
|
Windows NT 4.0 Service Pack 2 |
4.0 Service Pack 2 Upgrade | English |
|
15.31MB | 0 |
 Windows NT 4.0 Service Pack 2 (OEM) (ISO) |
4.0 Service Pack 2 Upgrade | English |
|
210.99MB | 2 |
|
Windows NT 4.0 Service Pack 3 |
4.0 Service Pack 3 Upgrade | English |
|
18.61MB | 0 |
|
Windows NT 4.0 Service Pack 3 (OEM) (ISO) |
4.0 Service Pack 3 Upgrade | English |
|
178.45MB | 1 |
|
Windows NT 4.0 Service Pack 4 |
4.0 Service Pack 4 Upgrade | English |
|
33.07MB | 0 |
|
Windows NT 4.0 Service Pack 4 (128bit) (ISO) |
Service Pack 4 (128bit) Upgrade | English |
|
449.01MB | 0 |
|
Windows NT 4.0 Service Pack 4 (ISO) |
4.0 Service Pack 4 Upgrade | English |
|
450.59MB | 4 |
|
Windows NT 4.0 Service Pack 5 |
4.0 Service Pack 5 Upgrade | English |
|
9.57MB | 8 |
|
Windows NT 4.0 Service Pack 5 (OEM) (ISO) |
4.0 Service Pack 5 Upgrade | English |
|
335.24MB | 28 |
|
Windows NT 4.0 Service Pack 6a |
4.0 Service Pack 6a Upgrade | English |
|
36.06MB | 4 |
|
Windows NT 4.0 Service Pack 6a (OEM) (ISO) |
4.0 Service Pack 6a (OEM) Upgrade | English |
|
373.12MB | 33 |
|
Windows NT 4.0 Service Pack 6a [DEC Alpha] |
4.0 Service Pack 6a Upgrade | English |
|
47.07MB | 0 |
|
Windows NT 4.0 Service Pack 6a [Dutch] |
4.0 Service Pack 6a Upgrade | Dutch |
|
38.85MB | 0 |
|
Windows NT 4.0 Service Pack 6a [Finnish] |
4.0 Service Pack 6a Upgrade | Finnish |
|
38.65MB | 0 |
|
Windows NT 4.0 Service Pack 6a [Finnish] (ISO) |
4.0 Service Pack 6a Upgrade | Finnish |
|
373.05MB | 0 |
|
Windows NT 4.0 Service Pack 6a [Italian] |
4.0 Service Pack 6a Upgrade | Italian |
|
38.83MB | 0 |
|
Windows NT 4.0 Service Pack 6a [Portuguese Brazilian] |
4.0 Service Pack 6a Upgrade | Portuguese Brazilian |
|
38.71MB | 1 |
|
Windows NT 4.0 Service Pack 6a [Spanish] |
4.0 Service Pack 6a Upgrade | Spanish |
|
38.71MB | 1 |
|
Windows NT 4.0 USB Support Patch |
4.0 USB Support Patch Upgrade | English |
|
4.94MB | 5 |