#Windows 2012 r2 kms key client install
The KMS server that is activated with the KMS host key for Windows Server 2012 R2 (VOLUME_KMS_WS12_R2 channel) supports the activation of all Windows operating systems up to Windows 8.1 / Windows Server 2012 R2 (to activate Windows 10 and Windows Server 2016, you need to install a special update on KMS host and re-activate the KMS server with a new key). Activate the OS with the command: slmgr /ato.
I did install the patch from KB article 3058168 before I found the new KMS key. It means that an activated KMS server starts to activate clients only when the number of clients that addressed it in the last 30 days exceeds the pre-defined thresholds: I have uploaded the 'Windows Srv 2012R2 DataCtr/Std KMS for Windows 10' key, I am still unable to activate my Windows 10 Ent clients via the Windows 2012 R2 KMS host. They can either be upgraded to Windows 8.1 or Windows Server 2012 R2 KMS Hosts, or updated with the update from Microsoft KnowledgeBase article 2885698. Remember that a KMS server has so called activation threshold counter. In order for these organizations, however, to activate Windows 8.1 and Windows Server 2012 R2, their existing Key Management Services (KMS) infrastructure may need to be updated. The following update extends the Key Management Service (KMS) for Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, and Windows Server 2012 to enable the enterprise licensing of Windows 8.1 and Windows Server 2012 R2.