Article ID: 171317
Article Last Modified on 10/31/2006
APPLIES TO
- Microsoft Windows NT Workstation 4.0 Developer Edition
- Microsoft Windows NT Server 4.0 Standard Edition
This article was previously published under Q171317
SYMPTOMS
When you upgrade from Windows NT version 3.51 to Windows NT version 4.0,
the system may stop responding on the subsequent restart while entering the
graphical user interface (GUI) portion of setup. When you use a Trident
TGUI94XXAGI video adapter and the Windows NT 3.51 driver from Trident, the
system may stop responding after carrying out the NTDETECT command while
the operating system loader displays the following message:
Microsoft (r) Windows NT TM Version 4.0 (build 1381). 1 System Processor
[32 MB Memory]
No error messages are displayed.
CAUSE
The Windows NT 3.51 video driver supplied by Trident for the AGI series
video adapter, Agi.sys, is not compatible with Windows NT 4.0.
RESOLUTION
Windows NT Installed on FAT Drive
If Windows NT is installed on a FAT drive, perform the following steps:
- Start the computer with another operating system (such as MS-DOS,
Microsoft Windows 95, or Microsoft Windows 3.x) and then rename Agi.sys
in \Winnt35\System32\Drivers.
- Copy Vga.sys to Agi.sys. Restart the computer and the upgrade will
finish.
- Contact Trident to obtain the updated Windows NT 4.0 video drivers. Then
install them on your computer.
-or-
Continue to use the standard VGA driver.
Windows NT Installed on NTFS Drive
If Windows NT is installed on an NTFS partition, perform the following
steps:
- Install a parallel copy of Windows NT 4.0 into a different directory and
then rename AGI.SYS in \Winnt35\system32\drivers.
- Copy VGA.SYS to AGI.SYS.
- Restart the computer and the upgrade will finish.
- Contact Trident to obtain the updated Windows NT 4.0 video drivers. Then
install them on your computer.
-or-
Continue to use the standard VGA driver.
MORE INFORMATION
The third-party products discussed here are manufactured by vendors
independent of Microsoft; we make no warranty, implied or otherwise,
regarding these products' performance or reliability.
Keywords: kb3rdparty kbprb kbsetup KB171317