When trying to actvate you get 0xC004F074 with description "The Key Management Server (KMS) is unavailable"

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RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.
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Symptom



When trying to activate Windows 7 or Windows Server 2008 R2 KMS client machines you may get this error message:

0xC004F074 with description "The Key Management Server (KMS) is unavailable"
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Cause



This error occurs with a support version mismatch between the KMS client and the KMS host machine.

Most commonly we are seeing this when the KMS host is running on Windows Server 2003 or Windows Server 2008. and the KMS client is Windows 7 or Windows Server 2008 R2. An update is needed for the KMS host running on Windows Server 2003 and an update is needed for the KMS host running on Windows Server 2008 to be able to activate KMS clients that are Windows 7 or Windows server 2008 R2.
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Resolution



If you are running Windows Server 2003 as your KMS host you need this update:

968915 (http://support.microsoft.com/kb/968915/ ) An update is available that installs Key Management Service (KMS) 1.2 for Windows Server 2003 Service Pack 1 (S968915) and for later versions of Windows Server 2003

To obtain this update for Windows Server 2008, click the following article number to view the article in the Microsoft Knowledge Base: 968912 (http://support.microsoft.com/kb/968912/ ) An update is available for Windows Vista and for Windows Server 2008 to extend KMS activation support for Windows 7 and for Windows Server 2008 R2
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APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Enterprise N
  • Windows 7 Professional
  • Windows 7 Professional N
  • Windows 7 Ultimate
  • Windows 7 Ultimate N


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Article ID:
974998

Last Review:
February 21, 2010 - Revision: 2.0



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Alias ID : 974998
Document ID : HT069258
Legacy Document ID : 974998
Last Updated :
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