Virtual Machine management (vmms) failed to start..

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• Friday, December 21, 2007 10:08 PMBen Armstrong [MSFT]MSFT

   
  

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  What language / locale did you select when installing Windows?  Hyper-V will only work if you select "English (United States)".

   

  Cheers,

  Ben

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• Tuesday, December 25, 2007 1:26 PMRich B [Getronics]

   
  

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  Same problem here, used the En-en version,

  but set the Regional Settings / location To Dutch (Netherlands)

   

  vmms service won't start, even when I switched location back to United States.

   

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• Tuesday, December 25, 2007 10:38 PMBill GrantMVP

   
  

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  Do not change anything until the install is complete an you have added the hyper-V role. After that you can change the settings. If you change anything in the language/regional settings at install time, vmms will not start.

   

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• Wednesday, January 02, 2008 4:38 PMNRTEngg

   
  

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  I have a similar problem with Hyper-V. The VMMS service fails to start : "The service changed to an unexpected state".
  In the event viewer the error message shown is:
  "Failed to create NT VIRTUAL MACHINE security identifier mappings: One or more arguments are invalid (0x80070057)
  
  I have set the system locale to English (United States) and location to United Kingdom.
  
  Thanks
  
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• Wednesday, January 02, 2008 7:36 PMBen Armstrong [MSFT]MSFT

   
  

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  What locale did you use to install the OS with?  It is not sufficient to change the locale after OS installation.

   

  Cheers,

  Ben

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• Wednesday, January 02, 2008 7:57 PMNRTEngg

   
  

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  Hi Ben. Thanks for the reply.
  
  I did use a different locale for the OS installation but changed to English (United States) before installing the Hyper-V role.
  Am guessing I need to do a fresh OS install?
  
  Cheers
  
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• Thursday, January 03, 2008 10:32 PMBen Armstrong [MSFT]MSFT

   
  

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  Correct.

   

  Cheers,

  Ben

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• Sunday, January 06, 2008 10:09 AMDanny Andrijanic

   
  

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  Thanks Ben.

   

  Problem solved.

   

  Just thought I'd let you know that installing clean on default locales solved this for me too.

   

  Regards,

  Danny.
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• Monday, March 10, 2008 2:47 AMAl West

   
  

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  Hi,
  
  You don't need to reinstall Windows 2008 Server if you installed Hyper-V on a non EN-US locale.  Simply install the EN-US locale, uninstall Hyper-V, ensure EN-US is selected next boot, Install Hyper-V and it should all be fine.  Warning even if you select EN-US at the login screen it will still go to your first Locale on the desktop - so use the language bar to switch.  By the way between each stage you should reboot.  The whole process took me 20 minutes which is a lot quicker than a fresh install.
  
  I've just followed the above procedure. Personally, I don't see any reason to reinstall an OS unless it is beyond economical or logical repair. 
  
  Hope that is of help to anyone not wishing to reinstall the OS.
  
  Kind Regards,
  Al
  
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• Thursday, March 13, 2008 11:02 AMJoe Hemmerlein [MSFT]

   
  

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  Hi,

   

  With a slight modification to Al's suggestion it also worked fine for me:

   

  - Uninstall current Hyper-V role

  - Reboot

  - Control Panel - Regional and Language Options

  - Currency Format: English (United States)

  - Location: United States

  - Keyboards and Languages: Setting "English (United States) - US" as default, then deleting the others

  - Administrative: Change system locale to English (United States)

  - Administrative: Apply

  - Administrative: Copy to reserved accounts - Default user account AND system accounts

  - OK / OK

  - Reboot

  - Install Hyper-V role again

   

  Cheers,

  .joe

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• Wednesday, March 26, 2008 6:33 AMRockend

   
  

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  Hello,

   

  It did work for me too after a number of tries. The trick for me was to change the language right after reboot in the language bar as it still keeps defaulting to English AU. Any idea how to get rid of this? It's uninstalled and deleted from Regional Options but still comes up as the default in the language bar.

   

  Thanks

   

  Andrew 

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• Wednesday, March 26, 2008 5:42 PMBen Armstrong [MSFT]MSFT

   
  

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  There should be no locale issues it you are using the RC0 release of Hyper-V.

   

  Cheers,

  Ben

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• Monday, March 31, 2008 1:20 PMJan Bouma

   
  

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  Same problem and solution here.
  
  First install with English, Dutch, United-States, and the service vmms won't run...
  
  Second install with English, English (United-States), United-States international, and all is fine
  
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• Wednesday, April 02, 2008 9:07 PMjustbasik

   
  

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  Ben Armstrong [MSFT] wrote:

  There should be no locale issues it you are using the RC0 release of Hyper-V.   Cheers, Ben

   

  Thanks Ben. Indeed this is the case, and it is easier than a clean install.

   

  Follow these steps:

  1. Remove Hyper-V from the Features in Server Manager.

  2. Run the Hyper-V update downloaded from here - http://support.microsoft.com/kb/949219 - you'll need the 64-Bit update for your host and the 32-bit update for any virtual machines already created.

  3. Reboot as requested. You should notice the Virtual Machine Service is running in the Hyper-V admin console.

   

   

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• Saturday, May 02, 2009 8:34 PMMattersGrubb

   
  

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  Try this update: KB950050
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• Friday, May 22, 2009 7:44 PMjtkkr

   
  

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  Works for me too,
  
  Thanks Joe...
  
  Bye,
  John
  
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