Microsoft KB Archive/829640

= Windows logon dialog box is not available when you run the Super User utility =

Article ID: 829640

Article Last Modified on 12/26/2006

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Datacenter Server
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
When you try to log on to Microsoft Windows 2000 or to Microsoft Windows XP, the Log On to Windows dialog box may not be available.



CAUSE
This issue may occur when both of the following conditions are true:
 * Nobody is logged on to the local computer.
 * A scheduled job uses the Super User utility (Su.exe) to run under a user account.

When the Super User utility runs, it switches to the default desktop. When nobody is logged on, this action hides the Windows logon dialog box.



RESOLUTION
To resolve this issue, use one of the following methods:  Configure the Super User utility to run on its own desktop.

For information about the options available with this utility, type su.exe /? at a command line, and then press ENTER.

For example, to start the Super User utility on the default windowstation &quot;winsta0&quot; and on a new desktop &quot;newdesktop&quot;, type the following command:

su.exe  cmd.exe   winsta0\newdesktop

 Reduce the screen saver wait time.

When the screen saver appears, touch any key to dismiss it. The logon dialog box appears.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.

Additional query words: script scripting welcome

Keywords: kbpending kbbug KB829640

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