■ Slmgr.vbs with the -ato option initiates the Activation process, which can be performed over the Internet or by telephoning a Microsoft clearinghouse operator. This new product key will replace any existing product key configured for the server. ■ Slmgr.vbs with the -ipk option installs a new product key. You can use slmgr.vbs to manage license keys on remote computers running Windows Server 2008. You can also use this utility to activate a traditional installation of Windows Server 2008. You activate Server Core installations of Windows Server 2008 by using the slmgr.vbs command-line utility.

FIGURE 11-6 Activating Windows Server 2008. You enter the product key and then either activate Windows over the Internet or, if your computer is not directly connected to the Internet, call a Microsoft clearinghouse operator by using a telephone. This opens the Windows Activation dialog box shown in Figure 11-6. If you did not enter a product key during the installation process, you can activate Windows Server 2008 by opening System in Control Panel and clicking Change Product Key. You must activate a retail key within a 30-day period after you perform initial installation. Retail keys must be manually configured and, in all but a few circumstances, apply only to a single computer. Retail keys come with editions of Windows Server 2008 that you purchase.

With OEM keys, the vendor usually activates Windows prior to you deploying the computer in your environment, or activation occurs immediately after you first boot and configure the computer. Most IT professionals are familiar with two types of activation key, original equipment manager (OEM) keys and retail keys.

Microsoft server 2008 r2 license key