Change KMS Hosts to KMS Clients

Posted on 2010-01-11
Medium Priority
Last Modified: 2012-05-08
I have two Windows 2008 Servers that were activated using a corporate KMS key incorrectly.  The problem is that these both are acting as KMS hosts.  Corporate IT now has a KMS server for use to activate with.  How would I convert the 2008 KMS host machines to become KMS clients to the new KMS server?  Is there a way to blow out the original activation?  I guess I would need to delete the srv records also.
Any help would be appreciated.
Thank you,

Question by:RSchalhoub
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LVL 33

Accepted Solution

NJComputerNetworks earned 1000 total points
ID: 26285726
to point the windows machine to a new KMS activation server do this:

Run the first command seen below with the IP address of the new KMS server... the ATO to activate against it...
LVL 33

Expert Comment

ID: 26285760
(there is no reason to blow away old activations... this is because every 90 days, the client machine will need to always re-activate or communicate with a KMS host)

So, I would assume that the new KMS host servers are populated in DNS and are healthy and activating clients today?  If this is true, I would simiply uninstall the KMS service (or shut down the service) on the old machines.

Author Comment

ID: 26286119
Thank you for the feedback but I do not have the "/skms" option for slmgr.vbs.  I think it is because it is already a KMS host.
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LVL 33

Expert Comment

ID: 26286223
oh... sorry, it looks like you need to clear the KMS host first...

    Clear name of KMS computer used (sets the port to the default)

cscript slmgr.vbs -ckms

Author Comment

ID: 26313426
The It department for our parent company told me to do a repair install.  I guess I have no choice.
Thank you for your responses.
Also, I did not have the ability to use -ckms either.

LVL 33

Expert Comment

ID: 26313545
oh... wiat... I ran into something similar before...
LVL 33

Expert Comment

ID: 26313604
I was also missing the CKMS switch... and the SKMS option...  

I then found out that this particular machine was using a KMS key that was not correct.  (To me, it looked as if it was a KMS Host... but it really wasn't....it just had a KMS key (client) installed that was not compatible with our organization.  

To solve the problem,  I looked at the product key... you can see the commands to run so, that you can see a partial Product key of the Windows 2008 OS.  

I learned that this was the wrong key... so, there are commands to change the key without reloading the OS.  (Screen shot shows these commands...)

After I did this, I was able to activate the OS using a remote KMS host.


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