MS Hyper-V R2 SP1 (workgroup), Virtual Machine failed to change state

Backgroud:

1. Download Hyper-V R2 SP1 from http://technet.microsoft.com/en-us/evalcenter/dd776191.aspx

2. This server is running in workgroup mode

3. Disable firewall for all profiles

4. Enable all remote access through sconfig

5. Connect through Vista and Win7 in same workgroup with using Administrator account (Same administrator’s password on all machines)

6. hosts file modifed with adding hyper-v server name and IP

7. Windows firewall is disabled on all clients and server.

8. HRremote run to configure anonymous DCOM on client.

9. Remote Management can access to Hyper-V server and create Virtual Machine.

Problem:

When I start Virtual Machine. It has the error message “XXXXX failed to change state”.

I tried to simulate this issue with W2K8 R2 to the same machine. But this issue does not appear in W2K8 R2. I faced this problem in MS Hyper-V R2 SP1 only.

I re-installed 3 times and this issue can be reproduced in my machine.

I tried W2K8 R2 Standard (Full and Server Core) without problem. I can use my Vista to manage it succesfully.

I checked in event viewer. It has an event 3040.

Log Name: Microsoft-Windows-Hyper-V-Worker-Admin
Source: Microsoft-Windows-Hyper-V-Worker
Date: 5/4/2011 9:27:08 AM
Event ID: 3040
Task Category: None
Level: Error
Keywords:
User: NETWORK SERVICE
Computer: hyperv
Description:
‘W2K8_R2_Trial’ could not initialize. (Virtual machine ID CEF2E5E4-97A1-4393-9B5D-24805C81BE09)
Event Xml:
< Event xmlns=”http://schemas.microsoft.com/win/2004/08/events/event“>
<System>
<Provider Name=”Microsoft-Windows-Hyper-V-Worker” Guid=”{51DDFA29-D5C8-4803-BE4B-2ECB715570FE}” />
<EventID>3040</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0×8000000000000000</Keywords>
<TimeCreated SystemTime=”2011-05-04T01:27:08.857Z” />
<EventRecordID>14</EventRecordID>
<Correlation />
<Execution ProcessID=”808″ ThreadID=”2224″ />
<Channel>Microsoft-Windows-Hyper-V-Worker-Admin</Channel>
<Computer>hyperv</Computer>
<Security UserID=”S-1-5-20″ />
</System>
<UserData>
<VmInitialize xmlns:auto-ns2=”http://schemas.microsoft.com/win/2004/08/events” xmlns=”http://www.microsoft.com/Windows/Virtualization/Events“>
<VmName>W2K8_R2_Trial</VmName>
<VmId>CEF2E5E4-97A1-4393-9B5D-24805C81BE09</VmId>
</VmInitialize>
</UserData>
< /Event>

Solution:

Finally, I find out a hotfix which is related to this issue.

KB2517374: “You cannot start virtual machines on a computer that is running Windows Server 2008 R2 and on which a CPU is installed that supports the AVX feature”

http://support.microsoft.com/kb/2517374

After applying this Hotfix, I can start the Virtual Machine.