The very first step is to view the current edition.
Windows server 2012 r2 standard product key activation cmd.
To remove all installed keys run the following command.
Slmgr vbs ipk xxxxx xxxxx xxxxx xxxxx xxxxx obviously change xxxxx xxxxx xxxxx xxxxx xxxxx with your actual key.
Right click anywhere on blank space in the start launch or ctrl tab.
In such cases the operating system has been installed with a 120 day trial key.
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.
Activate windows server 2012 evaluation to full version.
As you can see the current edition is datacenter evaluation.
Windows server 2019 windows server semi annual channel windows server 2016 windows server 2012 r2.
Hover mouse in the bottom left hand corner to get the start icon or use ctrl esc or windows key command key.
Windows server 2012 r2 evaluation is valid for 180 days.
Run command prompt with administrator privileges and run following command.
To use the keys listed here which are gvlks you must first have a kms host running in your deployment.
Extend windows server 2012 r2 evaluation.
So open command prompt or windows powershell in elevated mode run as administrator and type dism online get currentediton as shown below.
Automatic virtual machine activation avma acts as a proof of purchase mechanism helping to ensure that windows products are used in accordance with the product use rights and microsoft software license terms.
To add the new key run the command below.
To change the product key on windows server 2012 and activate it via command line run the following commands below.
Following command will rearm your trial windows server 2012 r2.
You can rearm windows server 2012 r2 evaluation up to 5 times.