Applies To: Windows 10, Windows 8.1, Windows Server 2012 R2 Computers that are running volume licensing editions of Windows 10, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Server 2008 R2, Windows Vista, and Windows Server 2008 are, by default, KMS clients with no additional configuration needed. To use the keys listed here (which are GVLKs), you must fir