Run command prompt with administrator privileges and run following command.
Windows server 2012 r2 standard evaluation activation key.
If you license is genuine and your server is connected to the internet you should be able to validate your license.
To use the keys listed here which are gvlks you must first have a kms host running in your deployment.
You can now view the new server edition by going into server manager.
Press y to reboot.
You can rearm windows server 2012 r2 evaluation up to 5 times.
First you must convert to a full retail version.
In this way you can activate windows server evaluation edition to full retail edition.
Extend windows server 2012 r2 evaluation.
Then reboot your server.
If you haven t already configured a kms host see deploy kms activation for steps to set one up.
X is your product key.
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.
If you install windows server 2012 evaluation edition and later purchase a license the activation process is a little more confusing than you would immediately think.
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.
The edition will change from windows server 2012 r2 standard evaluation to windows server 2012 r2 standard.
Windows will reconfigure itself.