windows 2008 license activate

http://technet.microsoft.com/en-us/library/cc303280.aspx#_Activate_MAK_Clients

Activate MAK Clients

After a client is converted to MAK activation, it attempts to activate over the Internet at the next scheduled interval. You can force an immediate activation through the System application, over the Internet, using a telephone, or using the Volume Activation Management Tool (VAMT).

To confirm that your computer is activated, check the bottom right corner of the desktop for Windows is activated. You can also run Slmgr.vbs /dli from a command prompt to view the activation status of a computer.

Activate MAK Clients over the Internet

To complete the following procedures, you must have administrative rights on the MAK client computer and the MAK client computer must have access to the Internet. Windows reports whether the activation was successful or a failure. If you are unable to activate, the wizard presents additional options.

To activate MAK manually using System properties

1.      Log on to the MAK client.

2.      Open the System application in Control Panel. To do this, click Start, click Control Panel, and then double-click System.

3.      Click the option Click here to activate Windows now.

To activate a MAK client manually over the Internet

1.      Log on to the MAK client.

2.      Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.

3.      At the command prompt, type Regedit.exe and then press Enter.

4.      Type the following at the command prompt, and then press Enter:
cscript \windows\system32\slmgr.vbs /ato

5.      The script reports whether activation was a success or failure and includes a result code.