FIX: The message-signaled interrupts (MSIs) feature is not enabled on VIA processors on a computer that is running Windows 7 or Windows Server 2008 R2

Article translations Article translations
Article ID: 978330 - View products that this article applies to.
Expand all | Collapse all

On This Page

SYMPTOMS

Consider the following scenario:
  • You have a computer that is running Windows 7 or Windows Server 2008 R2.
  • The computer has one or more VIA Technologies, Inc (VIA) processors.
  • By default, the message-signaled interrupts (MSIs) feature is not enabled on these VIA processors even if they support MSIs.
In this scenario, some devices or applications that rely on the MSIs feature do not work as expected.

For example:
  • The Hyper-V feature does not work.
  • Some PCI-Express VGA cards do not work correctly.

RESOLUTION

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 the problem described in this article. 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:
http://support.microsoft.com/contactus/?ws=support
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

There are no prerequisites for installing this hotfix.

Restart information

You must restart the computer after you apply this hotfix.

File information

The global 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.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Hal.dll6.1.7600.16504194,43215-Jan-201019:50x86
Halacpi.dll6.1.7600.16504137,09615-Jan-201019:50x86
Halmacpi.dll6.1.7600.16504194,43215-Jan-201019:50x86
Hal.dll6.1.7600.20618194,44015-Jan-201020:12x86
Halacpi.dll6.1.7600.20618137,09615-Jan-201020:12x86
Halmacpi.dll6.1.7600.20618194,44015-Jan-201020:12x86
For all supported x64-based versions of Windows 7 and Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Hal.dll6.1.7600.16504263,04815-Jan-201020:01x64
Hal.dll6.1.7600.20618263,04815-Jan-201020:11x64
Additional notes

The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

STATUS

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

REFERENCES

For more information about Message-Signaled Interrupts, visit the following Microsoft Developer Network (MSDN) Web site:
Introduction to Message-Signaled Interrupts

Additional file information for Windows 7 and Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot Applicable
File size1,674
Date (UTC)15-Jan-2010
Time (UTC)23:19
PlatformNot Applicable
---
File nameX86_c1134022cdf17bd16b0ea546eca00191_31bf3856ad364e35_6.1.7600.16504_none_871389970c0ca774.manifest
File versionNot Applicable
File size691
Date (UTC)15-Jan-2010
Time (UTC)23:19
PlatformNot Applicable
---
File nameX86_f3e38a1a4e3b0ecd1ee50830083bfba7_31bf3856ad364e35_6.1.7600.20618_none_5eddbd95f4f15e8a.manifest
File versionNot Applicable
File size691
Date (UTC)15-Jan-2010
Time (UTC)23:19
PlatformNot Applicable
---
File nameX86_microsoft-windows-hal_31bf3856ad364e35_6.1.7600.16504_none_ab54cba9babdce35.manifest
File versionNot Applicable
File size9,274
Date (UTC)15-Jan-2010
Time (UTC)20:13
PlatformNot Applicable
---
File nameX86_microsoft-windows-hal_31bf3856ad364e35_6.1.7600.20618_none_abd799b0d3dfef4c.manifest
File versionNot Applicable
File size9,274
Date (UTC)15-Jan-2010
Time (UTC)20:47
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_1008e542bf98ece423be289ecc731d64_31bf3856ad364e35_6.1.7600.20618_none_90f57b506bbbc1f4.manifest
File versionNot Applicable
File size695
Date (UTC)15-Jan-2010
Time (UTC)23:19
PlatformNot Applicable
---
File nameAmd64_9fd194a3c064ba0475433bf364b4a914_31bf3856ad364e35_6.1.7600.16504_none_173f01549e3afa86.manifest
File versionNot Applicable
File size695
Date (UTC)15-Jan-2010
Time (UTC)23:19
PlatformNot Applicable
---
File nameAmd64_microsoft-windows-hal_31bf3856ad364e35_6.1.7600.16504_none_0773672d731b3f6b.manifest
File versionNot Applicable
File size7,549
Date (UTC)15-Jan-2010
Time (UTC)20:47
PlatformNot Applicable
---
File nameAmd64_microsoft-windows-hal_31bf3856ad364e35_6.1.7600.20618_none_07f635348c3d6082.manifest
File versionNot Applicable
File size7,549
Date (UTC)15-Jan-2010
Time (UTC)20:57
PlatformNot Applicable
---
File nameUpdate.mum
File versionNot Applicable
File size1,906
Date (UTC)15-Jan-2010
Time (UTC)23:19
PlatformNot Applicable

Properties

Article ID: 978330 - Last Review: May 27, 2010 - Revision: 4.0
APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Enterprise N
  • Windows 7 Professional
  • Windows 7 Professional N
  • Windows 7 Ultimate
  • Windows 7 Ultimate N
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Standard
Keywords: 
kbautohotfix kbfix kbbug kbexpertiseinter kbsurveynew kbqfe KB978330

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com