You have a Windows Vista-based computer that has an Secure Digital (SD) memory card inserted. You resume the computer from the system Hibernate mode (the S4 power state). Then, you try to shut down or restart the system. In this scenario, the system may stop responding on the shutdown screen.

When the issue occurs, you must remove the SD memory card to recover the system. Or, you must press the power button to forcibly shut down the computer.

Notes

•	Removing the SD card may cause data loss.
•	Sometimes, after you resume the computer from the system Hibernate mode, some applications may stop responding.
•	This problem does not occur on a Windows Vista Service Pack 1 (SP1)-based computer.

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Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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Hotfix information

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.

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, submit a request to 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.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

File information

The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.

Windows Vista, x86-based versions

File name	File version	File size	Date	Time	Platform
Update.mum	Not Applicable	2,329	05-Jul-2008	19:42	Not Applicable
X86_sdbus.inf_31bf3856ad364e35_6.0.6000.20872_none_703c6deee685141f.manifest	Not Applicable	1,664	05-Jul-2008	19:42	Not Applicable
X86_sffdisk.inf_31bf3856ad364e35_6.0.6000.20872_none_a2953a2e0617f60e.manifest	Not Applicable	2,836	05-Jul-2008	19:42	Not Applicable
Sdbus.sys	6.0.6000.20872	83,456	04-Jul-2008	04:34	x86
Sffdisk.sys	6.0.6000.20872	13,312	04-Jul-2008	04:54	x86
Sffp_mmc.sys	6.0.6000.20872	12,288	04-Jul-2008	04:54	x86
Sffp_sd.sys	6.0.6000.20872	12,288	04-Jul-2008	04:54	x86

Windows Vista, x64-based versions

File name	File version	File size	Date	Time	Platform
Amd64_sdbus.inf_31bf3856ad364e35_6.0.6000.20872_none_cc5b09729ee28555.manifest	Not Applicable	1,666	05-Jul-2008	22:00	Not Applicable
Amd64_sffdisk.inf_31bf3856ad364e35_6.0.6000.20872_none_feb3d5b1be756744.manifest	Not Applicable	2,838	05-Jul-2008	22:00	Not Applicable
Update.mum	Not Applicable	2,343	05-Jul-2008	19:42	Not Applicable
Sdbus.sys	6.0.6000.20872	104,960	04-Jul-2008	04:48	x64
Sffdisk.sys	6.0.6000.20872	14,848	04-Jul-2008	05:10	x64
Sffp_mmc.sys	6.0.6000.20872	14,848	04-Jul-2008	05:10	x64
Sffp_sd.sys	6.0.6000.20872	15,360	04-Jul-2008	05:10	x64

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information about the SD card driver stack, visit the following Web site:

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