Windows NT 3.1 build 340

Windows NT 3.1 build 340 is the October 1992 pre-release build of Windows NT 3.1, available in both Workstation and Advanced Server editions. The latter was shared by BetaArchive member The Distractor on 11 March 2017.https://www.betaarchive.com/forum/viewtopic.php?f=16&t=36783 It is the earliest available build of the Advanced Server version of Windows NT, at the time still called "LAN Manager for Windows NT".
This build is often mislabeled either as build 319.1 or 328.1, which are actually file versions of its kernel files (NTOSKRNL.EXE and NTKRNLMP.EXE). NTFS now works in this build.
Around the release of this build, the now well-known error in the processor detection routine appeared, preventing installation on the Pentium Pro and later without modification. It made its way into the final release and persisted into Windows NT 3.5. It was finally fixed around Windows NT 3.51 build 1002. Compared to the RTM, it also affects newer 486 processors that support the CPUID instruction and Pentium processors, making installation only possible on a 386 or an old 486 processor.http://www.os2museum.com/wp/why-windows-nt-from-october-1992-refuses-to-install-on-modern-cpus/
== NFO file ==
The following NFO file was included as part of the unknown release.
==New features and changes==
*This is the first known build to change the desktop background color from gray to teal. This change would later carry over to Windows 95.
*This is the first build to have an option to create an Emergency Repair Diskette, in some places also preliminary named "Emergency Maintenance Diskette". It was already available in build 297, but being grayed out.
*"NT Mode", which refers to the 32-bit protected mode of Windows NT, has been removed from the About box.
*This build adds support for NCR, Ultra and Western Digital SCSI adapters; the S3 graphics adapter and the Novell NE2000 network adapter.
*Time zone configuration has been added to setup.
*Uninterruptible Power Supply (PSU) support has been introduced.
*The DLC and SNMP network protocols have been added.
*More Control Panel applets have been added: Services, Drivers, Time Zone, UPS, Server, and MIDI Mapper.
== File differences ==
== Gallery ==
WindowsNT3.1-3.1.340-Setup.png|Setup
WindowsNT3.1-3.1.340-Setup2.png
WindowsNT3.1-3.1.340-Setup3.png
WindowsNT3.1-3.1.340-Boot.png|Boot screen (PC/AT)
WindowsNT-3.1.340-MIPS-Boot.png|Boot screen (MIPS R4000)
WindowsNT3.1-3.1.340-BSOD.png|System crash
WindowsNT3.1-3.1.340-Shutdown.png|Shutdown prompt
WindowsNT3.1-3.1.340-Safe.png|Safe to shutdown screen
WindowsNT3.1-3.1.340-AdvancedServerWallpaper.png|Advanced Server wallpaper
=== Miscellaneous ===
WindowsNT-October-1992-CD.jpg|x86 English CD [Workstation]
NT31-340-server-cd.png|x86 English CD [Advanced Server] (undumped)
WindowsNT-October-1992-SDK-CD.jpg|x86 and MIPS English SDK CD
WindowsNT-October-1992-SDK-Coverback.jpg|x86 English SDK CD (Back insert)
WindowsNT-October-1992-Bootdisk.jpg|x86 English SDK Boot floppy (5.25", 1.2MB)
October 1992 Boot Disk (1.4M).png|x86 English SDK Boot floppy (3.5", 1.44MB)
WindowsNT-3.1.340-floppies1-6.jpg|Disks 1-6
WindowsNT-3.1.340-floppies7-12.jpg|Disks 7-12
WindowsNT-3.1.340-floppies13-14.jpg|Disks 13-14
== Notes ==
== References ==
Category:Windows NT 3.1 builds