Activating Windows Server 2012

To ensure that your organization the correct license and accepted the notification Updates to the product, you must activate each copy Windows Server 2012 in your installation.

After Windows Server 2012 , you must enable Installation. Unlike previous versions of Windows server operating systems , there is no longer an activation grace period. If you do not run Activation, you can not perform an operating system Customization.

To activate Windows Server 2012, you can use One of the two general strategies:
§ Manual activation . Because when you use fewer servers.
§ Automatically activated . For when you are deploying a large number of servers. 
Manual activation 
Use manual activation , enter the product key , contact Microsoft servers . In addition , the administrator performs activated by telephone or via a special clearinghouse Website.
You can perform manual activation from the Server Manager console by performing the following steps:
1. Click the Local Server node.
2. In the Properties window, next to Product ID, click Not Activated.
3. In the Windows Activation dialog box, enter the product key, and then click Activate.
4. If a direct connection cannot be established to the Microsoft activation servers, details will
display about performing activation using a website from a device that has an Internet connection,
or by using a local telephone number.
Automatic Activation
In earlier versions of the Windows Server operating system, you can use the KMS to perform multiple client’s centralized activation. Activation Services server role in Windows Server Batch 2012 allows you to manage a new interface KMS server. This simplifies the process of Install KMS key on the KMS server. When you install the Volume Activation Services, you can also Configuring Active Directory - based activation. Active Directory -based activation allows automatic Activation domain-joined computers. When you use the Volume Activation Services, each computer actively contact the KMS server periodically updates its activation status. 
Volume Activation Management Tool (VAMT) 3.0 together with Volume Activate the service on the network to activate multiple computers not connected Directly to the Internet . You can use VAMT to generate reports and manage client and server licenses activate the corporate network.