Installation guide

Windows NT Installation Guide30
Problem
While booting Windows NT, you receive one of the following error messages:
• The required system file DISPLAY_DRIVER.DLL is bad or missing.
• The required system file DISPLAY_DRIVER.SYS is bad or missing.
Solutions
These error messages indicate video driver problems. Use the following table to
solve common video driver problems.
If the... Then...
Driver becomes disabled Boot the Windows NT operating system with
the last known good configuration.
Incorrect video driver is chosen
while installing the Windows NT
operating system
Reinstall the Windows NT operating system
with the correct driver.
New video card was installed before
the driver was installed
Reinstall the old video card, boot the Windows
NT operating system, and install the driver for
the new video card. Then install the new video
card and reboot the Windows NT operating
system.
The rest of this section provides descriptions of available beep and post codes,
and instructions on how to use the fail-safe booter.