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The Default Windows Logon Interface May Not Appear After Installing Third-Party Program

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article was previously published under Q302346
SYMPTOMS
When you start your computer after you install a third-party program, the default Windows logon interface may not appear. In Windows XP, the Welcome Screen and the Fast User Switching feature may no longer be available.
CAUSE
This issue can occur if the Graphical Identification and Authentication file (Msgina.dll) is replaced by a third-party program.
RESOLUTION
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows

To restore the default Windows logon interface, remove the following string value from the registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GinaDLL
After you do so, Windows uses the default Graphical Identification and Authentication file (Msgina.dll).
gina
Properties

Article ID: 302346 - Last Review: 01/31/2007 19:16:40 - Revision: 5.4

Microsoft Windows 2000 Server SP1, Microsoft Windows 2000 Server SP2, Microsoft Windows 2000 Professional SP1, Microsoft Windows 2000 Professional SP2, Microsoft Windows Server 2003, Standard Edition (32-bit x86), Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Datacenter Edition (32-bit x86), Microsoft Windows XP Professional, Microsoft Windows XP Home Edition

  • kbenv kbprb kbui KB302346
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