Article ID: 957967 - View products that this article applies to.
When you are running a Windows Server 2008-based computer that has the Hyper-V role installed, the computer may restart unexpectedly. Then, you may receive the following Stop error message:
This problem occurs occasionally. However, the probability that you will encounter this problem depends on your actual configuration. For example, this problem is more likely to occur in certain Hyper-V failover cluster scenarios. However, this problem is not exclusive to cluster scenarios.
STOP 0x0000001A (parameter1, parameter2, parameter3, parameter4)
This problem occurs when a Hyper-V component (Vid.sys) incorrectly unmaps some pages in the address space for the system process even though these pages were not mapped. This behavior corrupts the address space for the system process. When other programs or services try to access the corrupted address space, a Stop error is triggered.
Service Pack InformationTo resolve this problem, obtain the latest service pack for Windows Server 2008. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/968849/ )How to obtain the latest service pack for Windows Server 2008
Hotfix informationA 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:
http://support.microsoft.com/contactus/?ws=supportNote 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.
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.
PrerequisitesTo apply this hotfix, you must have Hyper-V role installed.
Restart requirementYou must restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe 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 Server 2008 file information notes
For all supported x64-based versions of Windows Server 2008
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/LN/ )Description of the standard terminology that is used to describe Microsoft software updates
Additional file information for Windows Server 2008
Additional files for all supported x64-based versions of Windows Server 2008
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