Windows Server 2025 Kms Client Key. To use kms, a kms host needs a key that activates, or authenticates, the kms host with microsoft. One you have to have a kms host to activate the server.

You need to install a 2025 kms host key from your microsoft licensing site onto an existing kms host or create a new kms licensing host with this key. If you are converting a computer from a kms host, mak, or retail edition of windows to a kms client, install the applicable product key (gvlk) from the list below.