To use the keys listed here which are gvlks you must first have a kms host running in your deployment.
Windows server 2012 r2 standard evaluation activation key.
The edition will change from windows server 2012 r2 standard evaluation to windows server 2012 r2 standard.
If you are converting a computer from a kms host mak or retail edition of windows to a kms client install the applicable setup key gvlk from the following tables.
Windows server 2012 r2 evaluation is valid for 180 days.
The microsoft evaluation center brings you full featured microsoft product evaluation software available for download or trial on microsoft azure.
Press y to reboot.
Windows will reconfigure itself.
You can rearm windows server 2012 r2 evaluation up to 5 times.
X is your product key.
As you can see below it this command will upgrade the edition of server to full version.
If you license is genuine and your server is connected to the internet you should be able to validate your license.
You can now view the new server edition by going into server manager.
Following command will rearm your trial windows server 2012 r2.
Then reboot your server.
It s a little more work than simply typing in a new product key.
Extend windows server 2012 r2 evaluation.
If you haven t already configured a kms host see deploy kms activation for steps to set one up.
Run command prompt with administrator privileges and run following command.