Now we have the Windows Server 2012 R2 and Windows 8.1 OS in my environment and Volume Licenses, I will need to update our KMS Server to the latest version.In our case it is running on Windows Server 2008 R2.
Install the following update: An update is available for Windows 7 and Windows Server 2008 R2 KMS hosts to support Windows 8 and Windows Server 2012 as described in KB2691586. This is also the place where you can request this hotfix. If you don’t install this hotfix registering a Windows Server 2012 KMS will throw an Error: 0xC004F050 The Software Licensing Service reported that the product key is invalid
Request the hotfix and install it from an elevated command prompt.
Once you’ve clicked OK the installation will start
After that’s finished you will be asked to restart the server. Do so. Just restarting the KMS service (“net stop sppsvc” and “net start sppsvc“) doesn’t suffice.
Now we have that out the way we can start putting our brand new KMS key into action.
Let’s take a look at what is already running:
slmgr.vbs /dlv => clearly the Windows 2008 R KMS key
Uninstall the current KMS key using slmgr.vbs /upk, please use an elevated command prompt
Now you can install the new KMS key.
slmgr.vbs /ipk xxxx-xxxxx-xxxxx-xxxxxx-xxxxx
Now activate your brandnew KMS key running slmgr.vbs /ato
Show what’s up and running now by running slmgr.vbs /dlv again and as you can see we’re in business to activate all our Windows Server 2012 R2 and Windows 8.1 hosts.
SLMGR /UPK may be necessary in some organisations. Without this the new key wouldn’t activate.
The KMS key activates:
•Windows Server 2008 R2
•Windows Server 2008
•Windows Server 2012
There is no requirement to have any W2K12/Windows 8. So it doesn’t matter, you can do that update, never even install a new KMS activation key and even if you do never activate any Windows Server 2012 / Windows 8. Even if that counter is reset doens’t matter either. The moment you reach the required number it just starts counting again.There is nothing dangerous or magic about that counter bar from people’s tendency to sit around watching it count. KMS if done well is set en forget until a new OS arrives and that you just update the KMS host. Nothing to worry about and if you have Volume Licensing so Microsoft support will help you when in doubt. KMS is loose that you could blow it up and take weeks to set up a new one, meanwhile
the company will keep running. All of this very well documented http://technet.microsoft.com/en-us/library/ff793418.aspx and here’s the entry point for all Volume activation info http://technet.microsoft.com/en-us/library/ff719787.aspx
Server VL VOLUME_KMS_2012_C_channel activates:
Windows Vista Business
Windows Vista Enterprise
Windows 7 Professional
Windows 7 Enterprise
Windows 8 Professional
Windows 8 Enterprise
Windows 2008 (all editions)
Windows 2008 R2 (all editions)
Windows Server 2012 (all editions)
Activation on the Enterprise client machines- Open cmd prompt and enter: slmgr.vbs /ato
How to install the Office 2010 KMS Host License Pack on Windows 8 or Windows Server 2012 – Office Deployment Support Team Blog – Site Home – TechNet Blogs