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Q171643: Winlogon Hangs at the Log On Screen

Article: Q171643
Product(s): Microsoft Windows NT
Version(s): WinNT:3.51,4.0
Operating System(s): 
Keyword(s): kbenv
Last Modified: 09-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server versions 3.51, 4.0 
- Microsoft Windows NT Workstation versions 3.51, 4.0 
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SYMPTOMS
========

Windows NT 4.0 Winlogon stops responding (hangs) at the logon screen after
creating a blank system-environment variable.

-or-

Windows NT 3.5x causes the computer to stop responding (hang) and displays the
following error message:

  c000021a fatal system error
  The winlogon process has terminated unexpectely with a status of
  0XC00000005 (0X000000000 0X000000000)


RESOLUTION
==========

You need to restart the system before you are able to log on to the computer
again.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 4.0. We are
researching this problem and will post new information here in The Microsoft
Knowledge Base as it becomes available.
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Keywords          : kbenv 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT400search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS351search
Version           : WinNT:3.51,4.0
Issue type        : kbbug
Solution Type     : kbpending

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