Disabling Buttons in the Windows NT Security Dialog Box

This article was previously published under Q174840
This article has been archived. It is offered "as is" and will no longer be updated.
IMPORTANT: This article contains information about editing the registry.Before you edit the registry, make sure you understand how to restore itif a problem occurs. For information on how to do this, view the "Restoringthe Registry" online Help topic in Regedit.exe or the "Restoring a RegistryKey" online Help topic in Regedt32.exe.
Symptoms
You cannot disable the Lock Workstation, Change Password, or Task Managerbuttons when you press CTRL+ALT+DELETE.
Resolution
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack



WARNING: Using Registry Editor incorrectly can cause serious problems thatmay require you to reinstall Windows NT. Microsoft cannot guarantee thatproblems 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 AndValues" online Help topic in Registry Editor (Regedit.exe) or the "Add andDelete Information in the Registry" and "Edit Registry Data" online Helptopics in Regedt32.exe. Note that you should back up the registry beforeyou edit it.

After you apply the hotfix, perform one of the following:

  • Run Regedt32.exe and add the following value(s) to the registry:

    • To disable the LOCK WORKSTATION button, create the following value in the registry:

      NOTE: The System key may need to be created.

      HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion \Policies\System\ DisableLockWorkstation = 1 (DWORD Hexadecimal value)


      NOTE: The above registry key is one path; it has been wrapped for readability.
    • To disable the CHANGE PASSWORD button, create the following value in the registry:

      NOTE: The System key may need to be created.

      HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion \Policies\System\ DisableChangePassword = 1 (DWORD Hexadecimal value)


      NOTE: The above registry key is one path; it has been wrapped for readability.
    • To disable the TASK MANAGER button, create the following value in the registry:

      NOTE: The System key may need to be created.

      HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion \Policies\System\ DisableTaskMgr = 1 (DWORD Hexadecimal value)


      NOTE: The above registry key is one path; it has been wrapped for readability.


    -or-
  • Copy the updated version of Winnt.adm to the %SystemRoot%\Inf folder and then perform the following steps:
    1. Start System Policy Editor (Poledit.exe).
    2. On the file menu, click open registry, and then double-click Local User.
    3. Double-click Windows NT System.
    4. The new options appear as:

      • Disable Lock Workstation
      • Disable Change Password
      • Disable Task Manager
Status
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
poledit
Properties

Article ID: 174840 - Last Review: 10/26/2013 01:57:00 - Revision: 3.0

  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
  • kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix KB174840
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