Install this update on the KMS host if it is running Windows 8.1, Windows Server 2012 R2, Windows 8, or Windows Server 2012. Microsoft Community forum on installation and activationįix this error that you get when you try to activate a Windows 8.1, Windows Server 2012 R2 or newer system: “Error: 0xC004F050 The Software Licensing Service reported that the product key is invalid”… Install, upgrade, & activate (use the menu to the right to select the Windows version you are interested in) Use these links for retail versions of Windows: To install a client setup key, open an administrative command prompt on the client, type slmgr /ipk and then press Enter.Īctivate Windows outside of a volume-activation scenario (that is, you’re trying to activate a retail version of Windows), these keys will not work. If you are converting a computer from a KMS host, MAK, or retail edition of Windows to a KMS client, install the applicable setup key (GVLK) from the following tables. If you haven’t already configured a KMS host, see Deploy KMS Activation for steps to set one up. To use the keys listed here (which are GVLKs), you must first have a KMS host running in your deployment. Applies To: Windows 10, Windows 8.1, Windows Server 2012 R2Ĭomputers 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.

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