Courtsey- http://wibier.me/operations-manager-2012-scom-activation/



When you install Operations Manager 2012 (SP1) you may notice is that there is no request for a product key when you install Operations Manager 2012.  Once the install is complete and you open up the console the following is displayed:

When you click Help à About à will show that you are running an Evaluation copy.

The way to do it is described here: http://support.microsoft.com/kb/2699998, and here is the visual version.

To register your product key with Operations Manager 2012 and move from the Evaluation edition to the Retail edition you will need to launch the Operations Management Shell and run a PowerShell cmdlet.

So start up the Operations Manager Shell:

And type:

Set-SCOMLicense –ProductId {YourProductKey}

(Tip: type the first letters and then push for PowerShell to complete the command)

On completion restart the Operations Manager 2012 server for the key to validate.

After the reboot, check back in Help à About you will see it is now a Retail version.

To check whether the changes were made, run the following command:

Get-SCOMManagementGroup | ft skuforlicense, version, timeofexpiration –a