The KMS clients come with a key pre-installed, called the Generic Volume License Key (GVLK) or KMS Client Setup Key. The presence of the GVLK is what makes a system a KMS client. The KMS clients find the KMS host via a DNS SRV record (_vlmcs._tcp) and then automatically attempt to discover and use this service to activate themselves. When in the 30 day Out of Box grace period, they will try to activate every 2 hours. Office installations: launch the Office application and run cscript ospp.vbs /act.
To expedite this process, the following commands can be utilised: It’s up to the KMS client (OS or Office) to start the activation process, which can be triggered at any time from KMS client product start up. This doesn’t necessarily indicate an issue with PVS image preparation, or with the streamed image. Sometimes after properly following the preparation steps, on start up the Operating System shows only 3 days remaining to be activated, or Office prompts users to activate now, or similar.
