slmgr /dli Look for "Volume" in the description. To see the last five characters of the installed key:
cscript ospp.vbs /inpkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX cscript ospp.vbs /act To check which product key is currently installed and whether it is a GVLK, use: kms client key
Introduction In the world of Microsoft volume licensing, the KMS Client Key (officially known as the Generic Volume License Key or GVLK ) is one of the most misunderstood yet essential components for activating Windows and Office in large organizations. If you have ever worked with an IT department that deploys dozens or hundreds of computers, you have indirectly relied on KMS Client Keys. slmgr /dli Look for "Volume" in the description
This article explains what KMS Client Keys are, how they work, where to find them, and why they are crucial for enterprise activation. A KMS Client Key is a pre-defined, publicly available product key that is built into specific editions of Microsoft Windows and Office. Its sole purpose is to tell the operating system or application: "Do not try to activate over the internet with Microsoft. Instead, locate a Key Management Service (KMS) host on the local network and activate through it." This article explains what KMS Client Keys are,