On a portable computer that is running Microsoft Windows XP and that has the Fast User Switching feature turned on, the computer may not turn off, and the logon screen may open. This problem may occur when you switch from your user account to the Fast User Switching screen and then press the power button on your computer.
When you press the power button, your computer should either go into standby or shut down.
This problem may occur if you have installed Microsoft Windows XP Service Pack 1.
Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain the latest Windows XP service pack
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note
If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note
The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
To install this hotfix, you must have Microsoft
Windows XP Service Pack 1
installed on your computer.
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone
tab in the Date and Time tool in Control Panel.
Date Time Version Size File name Platform
03-Mar-2003 19:01 5.1.2600.1178 518,144 Winlogon.exe x86
03-Mar-2003 17:54 5.1.2600.1178 647,680 Winlogon.exe IA-64
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
Description of the Standard Terminology That Is Used to Describe Microsoft Software Updates
SQL Server requires systems to support ‘ guaranteed delivery to stable media ’ as outlined under the Microsoft SQL Server Always-On Storage Solution Review program. Fo
For more information about the input and output requirements for the SQL Server database engine, click the following article number to view the article in the Microsoft Knowledge Base:
Microsoft SQL Server Database Engine Input/Output Requirements