Uninstall the KMS host

Uninstall the KMS host key first by running the following command:

slmgr -upk

2. Then,
install the default kms key by running the following command:

slmgr
/ipk [KMS Client Setup Key]

The default KMS client setup keys can be found here:

http://technet.microsoft.com/en-us/library/cc303280.aspx

3. Delete the record from the DNS:
Open DNS console:

Expand _tcp node under the domain.com. There will
be a record _VLMCS. Delete this record.

4. The KMS server is uninstalled.

Running Slmgr.vbs Remotely

slmgr.vbs TargetComputerName [username] [password] /parameter [options]

Table 3. Slmgr.vbs Parameters

Parameter	Description
/sprt PortNumber	Sets the TCP communications port on a KMS host. Replace PortNumber with the TCP port number to use. The default setting is 1688.
/cdns	Disables automatic DNS publishing by a KMS host.
/sdns	Enables automatic DNS publishing by the KMS host.
/cpri	Lowers the priority of KMS host processes.
/spri	Sets the priority of KMS host processes to Normal.
/sai ActivationInterval	Changes how often a KMS client attempts to activate itself when it cannot find a KMS host. Replace ActivationInterval with a number of minutes. The default setting is 120.
/sri RenewalInterval	Changes how often a KMS client attempts to renew its activation by contacting a KMS host. Replace RenewalInterval with a number of minutes. The default setting is 10080 (7 days). This setting overrides the local KMS client settings.
/dli	Retrieves the current KMS activation count from the KMS host.