A Microsoft Windows XP-based computer stops responding (hangs) when you try to perform one of the following operations:
Put the computer on standby or into hibernation.
Resume the computer from standby or from hibernation.
Use the Shut Down command on the Start menu.
This problem occurs when the following conditions are true:
A universal serial bus (USB) camera is connected to the computer's USB root hub or USB port.
Note Some computers have an internal USB hub. For example, a portable computer may have a single USB bus and use an internal USB hub to provide two or more USB ports on the computer.
The Allow the computer to turn off this device to save power option is enabled for the USB camera.
This problem occurs if the USB root hub uses either USB 1.1 or USB 2.0.
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.
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 tool in Control Panel.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684Description of the standard terminology that is used to describe Microsoft software updates
To work around this problem, disable the Allow the computer to turn off this device to save power option for the USB camera. To do this, follow these steps:
Click Start, click Run, type devmgmt.msc in the Open box, and then click OK.
In Device Manager, expand Imaging devices.
Right-click the USB camera, and then click Properties.
Note The USB camera is typically located under Imaging devices in Device Manager. However, the camera may be located elsewhere, depending on the device. Contact your hardware manufacturer for more information.
Click the Power Management tab, and then click to clear the Allow this computer to turn off this device to save power check box.