DOCUMENT:Q245148
TITLE   :Windows NT Appears to Hang When You Log Off After Installing Windows 
         NT 4.0 Service Pack 6
PRODUCT :Windows NT
PROD/VER:4.0
OPER/SYS:WINDOWS NT
KEYWORD :kbbug4.00 kbfix4.00 

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The information in this article applies to:

 - Microsoft Windows NT Workstation version 4.0 SP6 
 - Microsoft Windows NT Server, Enterprise Edition version 4.0 SP6 
 - Microsoft Windows NT Server version 4.0 SP6 
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SYMPTOMS
========

When you try to log off your computer by clicking "Close all programs and log on
as a different user" in the Shut Down Windows dialog box after you install
Windows NT 4.0 Service Pack 6, the screen may appear gray, and your computer may
appear to stop responding (hang). Also, your mouse pointer may appear as an
hourglass, indicating your computer is busy.

CAUSE
=====

This problem occurs because of a change in the WINLOGON service in Windows NT
4.0 Service Pack 6.

RESOLUTION
==========

The following files are available for download from the Microsoft Download
Center or Microsoft's FTP site. Click the file names below to download the
appropriate file:

   x86:

   Microsoft Download Center: Q245148i.exe
   (http://download.microsoft.com/download/winntsp/patch/winlogon/nt4/en-us/q245148i.exe)

   FTP: Q245148i.exe
   (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/hotfixes-postsp6a/winlogon-fix/Q245148i.exe)

   Alpha:

   Microsoft Download Center: Q245148a.exe
   (http://download.microsoft.com/download/winntsp/patch/winlogon/alpha/en-us/q245148a.exe)

   FTP: Q245148a.exe
   (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/hotfixes-postsp6a/winlogon-fix/Q245148a.exe)

For more information about how to download files from the Microsoft Download
Center, please visit the Download Center at the following Web address

   http://www.microsoft.com/downloads/search.asp

and then click "How to use the Microsoft Download Center".

The English version of this fix should have the following file attributes or
later:

   Date      Time    Version      Size    File name     Platform
   -------------------------------------------------------------
   11/18/1999  07:19p             192,272 Winlogon.exe  x86
   11/18/1999  07:19p             274,704 Winlogon.exe  Alpha

WORKAROUND
==========

To work around this problem, log off by pressing CTRL+ALT+DEL, and then clicking
Logoff.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products listed at
the beginning of this article.

MORE INFORMATION
================

When you log off your computer, programs may prompt you to save data. If you
click Cancel, the logoff sequence is stopped, and control is returned to the
program so you can continue working. If you then click Start to log off, you
receive the behavior noted earlier in this article.

Additional query words: sp6
============================================================================

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