Stop error message when you try to update or to install AVstream device drivers on a Windows Vista-based computer: "Stop error code 0x00000050 (PAGE_FAULT_IN_NONPAGED_AREA)"

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Article ID: 950127 - View products that this article applies to.
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Consider the following scenario:
  • You are running a Windows Vista-based computer.
  • You try to update or to install video or audio AVstream device drivers.
  • The corresponding device is in suspend mode.
In this scenario, the computer crashes. Additionally, you receive the following Stop error message:
STOP: 0x00000050 (0xFFFFFF94, 0x00000000, 0x8D2E3798, 0x00000000)
ks.sys Address 8D2E3798 base at 8D2C5000, DateStamp 4549b186
For example, when you upgrade Windows Vista to Windows Vista Service Pack 1, the video and audio AVstream device drivers are updated. Therefore, in this situation, you may experience this issue.


A update is available to resolve this issue. To download and install update 950127, install all important updates from Windows Update. To do this, visit the Microsoft Windows Update Web site, or download the updates from the Microsoft Download Center.

The following file is available for download from the Microsoft Download Center:

Windows Vista 32-bit (x86)
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Download the 950127 package now.

Windows Vista 64-bit (x64)
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Download the 950127 package now.

Update information


No prerequisites are required.

Restart requirement

You have to restart the computer after you apply this update.

Update replacement information

This update does not replace any other previously released updatees.

Registry information

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

File information

The English version of this update 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
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File nameFile versionFile sizeDateTime
Windows Vista, x64-based versions
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File nameFile versionFile sizeDateTime


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


For more information about AVstream, visit the following Microsoft Web site:
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates


Article ID: 950127 - Last Review: January 20, 2012 - Revision: 4.0
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
atdownload kbexpertisebeginner kbfix kbqfe KB950127

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