Symptoms
On a Windows Server 2008-based computer that has the Hyper-V role installed, or on a Microsoft Hyper-V Server 2008-based computer, you may experience one of the following issues:
-
When you try to connect to a virtual machine, you receive the following error message:
Cannot connect to the virtual machine because the authentication certificate is expired or invalid. Would you like to try connecting again?
-
When you start a virtual machine, you receive the following error message:
'VMName' failed to initialize.Could not initialize machine remoting system. Error: ‘Unspecified error’ (0x80004005). Could not find a usable certificate. Error: ‘Unspecified error’ (0x80004005).
Cause
This issue occurs because the Hyper-V Virtual Machine Management service (VMMS) certificate has expired.
Resolution
Service Pack Information
To 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:
968849 How to obtain the latest service pack for Windows Server 2008
Update information
The following file is available for download from the Microsoft Download Center:Update for Windows Server 2008 x64 Edition (KB967902)
119591 How to obtain Microsoft support files from online servicesMicrosoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Prerequisites
Before you apply this update, the release version of Hyper-V must be installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
950050 Description of the update for the release version of the Hyper-V technology for Windows Server 2008
Restart requirement
You must restart the computer after you apply this update
Update replacement information
This update does not replace any other updates.
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 Server 2008 notes
The .manifest files and the .mum files that are installed in each environment are listed separately in the "Additional file information for Windows Server 2008" section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.For all supported x64-based versions of Windows Server 2008
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Vmms.exe |
6.0.6001.22383 |
3,878,400 |
21-Feb-2009 |
06:17 |
x64 |
|
Vmwp.exe |
6.0.6001.22383 |
3,526,144 |
21-Feb-2009 |
06:17 |
x64 |
The hotfix also contains the GDR version for all supported x64-based versions of Windows Server 2008
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Vmms.exe |
6.0.6001.18221 |
3,878,816 |
21-Feb-2009 |
05:06 |
x64 |
|
Vmwp.exe |
6.0.6001.18221 |
3,526,120 |
21-Feb-2009 |
05:06 |
x64 |
After you install this update, the Hyper-V VMMS certificate can be renewed automatically when it is expired.
Workaround
To work around this issue, you can generate a new certificate. To do this, follow these steps:
-
Shut down or save all virtual machines.
-
Restart the Hyper-V VMMS.
-
Start the virtual machines.
Note Because the Hyper-V VMMS certificate is valid for one year, the update has to be applied to prevent this issue from occurring in the future.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
To determine the expiration date for the Hyper-V VMM service self-signed certificate, follow these steps:
-
Click Start , click Run , type mmc , and then click OK.
-
On the File menu, click Add/Remove Snap-in.
-
Click Certificates , and then click Add.
-
Click Service account , and then click Next.
-
Click Local Computer , and then click Next.
-
Click Hyper-V Virtual Machine Management , and then click Finish.
-
Click OK to close the Add/Remove Snap-in window.
-
Expand Certificates - Service , expand Vmms\Personal , and then click Certificates.
-
Double-click the VMM Service certificate, and then check the expiration date in the VMM Service certificate window.
For more information about software update terminology, 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
Additional file information for Windows Server 2008
Additional files for all supported x64-based versions of Windows Server 2008
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Amd64_microsoft-hyper-v-vstack-vmms_31bf3856ad364e35_6.0.6001.22383_none_92eac53930a5ec97.manifest |
Not Applicable |
249,723 |
21-Feb-2009 |
06:38 |
Not Applicable |
|
Amd64_microsoft-hyper-v-vstack-vmwp_31bf3856ad364e35_6.0.6001.22383_none_91954bdf3181df4c.manifest |
Not Applicable |
192,587 |
21-Feb-2009 |
06:37 |
Not Applicable |
|
Package_for_kb967902_sc_0_bf~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,505 |
21-Feb-2009 |
14:39 |
Not Applicable |
|
Package_for_kb967902_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,529 |
21-Feb-2009 |
14:38 |
Not Applicable |
|
Package_for_kb967902_sc_bf~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,411 |
21-Feb-2009 |
14:39 |
Not Applicable |
|
Package_for_kb967902_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,431 |
21-Feb-2009 |
14:38 |
Not Applicable |
|
Package_for_kb967902_server_0_bf~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,509 |
21-Feb-2009 |
14:39 |
Not Applicable |
|
Package_for_kb967902_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,532 |
21-Feb-2009 |
14:38 |
Not Applicable |
|
Package_for_kb967902_server_bf~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,419 |
21-Feb-2009 |
14:39 |
Not Applicable |
|
Package_for_kb967902_server~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,439 |
21-Feb-2009 |
14:38 |
Not Applicable |
|
Update-bf.mum |
Not Applicable |
1,771 |
21-Feb-2009 |
14:39 |
Not Applicable |
