When you wake a Windows Vista-based computer from sleep, a Bluetooth device may no longer work correctly. After this problem occurs, the computer may stop responding when you try to put the computer to sleep again. Or, the computer may stop responding when you try to shut down or restart the computer.

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This problem may occur on a system that supports selective suspend if the computer goes to sleep shortly after the Bluetooth device's power is cycled.

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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 now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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, 32-bit versions

File name	File version	File size	Date	Time	Platform
Bthenum.sys	6.0.6000.20493	19,456	08-Dec-2006	04:35	x86
Bthport.sys	6.0.6000.20493	220,160	08-Dec-2006	04:35	x86
Bthusb.sys	6.0.6000.20493	29,184	08-Dec-2006	04:35	x86
Fsquirt.exe	6.0.6000.20493	181,760	08-Dec-2006	04:35	x86
Bthenum.sys	6.0.6000.16398	19,456	08-Dec-2006	04:34	x86
Bthport.sys	6.0.6000.16398	220,160	08-Dec-2006	04:34	x86
Bthusb.sys	6.0.6000.16398	29,184	08-Dec-2006	04:34	x86
Fsquirt.exe	6.0.6000.16398	181,760	08-Dec-2006	04:35	x86

Windows Vista, 64-bit versions

File name	File version	File size	Date	Time	Platform
Bthenum.sys	6.0.6000.20493	23,040	08-Dec-2006	05:35	x64
Bthport.sys	6.0.6000.20493	276,480	08-Dec-2006	05:35	x64
Bthusb.sys	6.0.6000.20493	34,304	08-Dec-2006	05:35	x64
Fsquirt.exe	6.0.6000.20493	187,904	08-Dec-2006	05:35	x64
Bthenum.sys	6.0.6000.16398	23,040	08-Dec-2006	04:57	x64
Bthport.sys	6.0.6000.16398	276,480	08-Dec-2006	04:57	x64
Bthusb.sys	6.0.6000.16398	34,304	08-Dec-2006	04:57	x64
Fsquirt.exe	6.0.6000.16398	187,904	08-Dec-2006	04:57	x64

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To work around this problem, restart the computer.

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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 Windows Vista Service Pack 1.

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For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the terms that are used to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base:

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