Activating Windows 10 on Windows Server 2008 R2, Windows Server 2012 and 2012 R2 KMS hosts.
Applies to:
Windows Server 2012 R2
Windows Server 2012
Windows Server 2008 R2
Windows 7
Note: Windows 10 activation is not supported on:
•Windows Server 2008 KMS hosts
•Windows Vista KMS hosts
•Windows Server 2003 KMS hosts
Date: 08/05/2015
Updated 9/16/2015
Issue:
====
3086418 Error 0xC004F015 while activating Windows 10 Enterprise using Windows Server 2012 R2 KMS Host
https://support.microsoft.com/kb/3086418
Solution:
=========
3058168 Update that enables Windows 8.1 and Windows 8 KMS hosts to activate a later version of Windows
https://support.microsoft.com/kb/3058168
or
3079821 Update that enables Windows 7 and Windows Server 2008 R2 KMS hosts to activate Windows 10
https://support.microsoft.com/kb/3079821
which points to:
Update for Windows 7 for x64-based Systems (KB3079821)
https://www.microsoft.com/en-us/download/details.aspx?id=49057