Repeated Logon Prompt in Windows NT 4.0

ID: Q220881

The information in this article applies to:
  • Microsoft Windows NT Server version 4.0
  • Microsoft Windows NT Workstation version 4.0
IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

When you attempt to log on to Windows NT 4.0, you may not be logged on. Instead, the logon prompt may be displayed again.


CAUSE

This behavior can be caused by an invalid registry entry.


RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

To resolve this issue, delete the registry value listed below.

  1. Start Registry Editor (Regedt32.exe).


  2. From the HKEY_LOCAL_MACHINE\SYSTEM subkey, go to the following key:
    CurrentControlSet\Control\Session Manager\Environment


  3. Delete the following entry:
    Value: no name
    Type: REG_DWORD
    Data: %systemroot%


NOTE: You may need to gain access to this registry by first performing a parallel installation of Windows NT. For information about parallel installations, please see the following article in the Microsoft Knowledge Base:
Q126690 Windows NT 4.0 Setup Troubleshooting Guide

Additional query words: loop looping

Keywords : kbenv
Version : winnt:4.0
Platform : winnt
Issue type : kbprb


Last Reviewed: March 3, 1999
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