We need to KMS activate Windows 10 and Windows 7 and Server 2012 R2 and Office 2010.
Since the KMS server only accepts one KMS host key, how can you activate both Server 2012 R2 and Windows 10 using KMS? I didn't see a host key that handles both Windows 10 and Server 2012 R2.
https://technet.microsoft.com/en-us/library/dn502537.aspx
In the column for 2012 R2 labeled can activate these Windows products: it says it can activate Windows 10, but on the last column it only says:
can activate these specific Windows editions:
Windows Server 2012 R2 Server Standard
Windows Server 2012 R2 Datacenter
Windows Server 2012 R2 Essentials
No mention of Windows 10.
Windows 10 is only listed in this column when the host is running Windows 10.