Using KMS Manually to Activate Software

This page is intended for technical support providers and network administrators. If you're not one of those, you should talk to your TSP or net admin before proceeding. The concept behind the procedure on this page is explained on our main KMS page.
This page describes how to manually activate products. With this method, you'll need to run commands on each machine - and for each software package - during the 30 day grace period after installation. If you are using virtual machines for testing and cross-compatibility on Macintosh computers, you'll need to use the manual method in those circumstances.
To use this method, first install the software (Windows or Microsoft Office). As part of that process you'll be informed that you have 30 days to activate the product. Complete the steps below during that 30-day period.
This method assumes that Windows or Office has never been activated on this machine before. If your machine had previously been activated with the earlier MAK activation method, please instead follow the instructions to switch from MAK to KMS activation.

Activate a Windows Operating System: Windows 7, Windows 8, Server 2008, Server 2008 R2, or Server 2012:

1. Click the Start orb. In the Search box, type
   cmd
   Do not press Enter on your keyboard.
2. Right-click on cmd.exe in the search results, then select Run as administrator from the menu that appears.
3. In the command prompt window, verify that the current directory is C:\Windows\System32. If it is not, type
   CD \Windows\System32
   and press Enter.
4. Type the following command:
   cscript slmgr.vbs /skms kms01.cit.cornell.edu
   and press Enter.
   (Note: The url in the command above begins with kay-emm-ess-zero-one.)
   
5. Type the following command:
   cscript slmgr.vbs /ato
   and press Enter.
6. Close the command prompt window.

And you're done for that installation of Windows on that computer.

Activate Microsoft Office (2010 or 2013)

1. Click the Start orb. In the Search box, type
   cmd
   Do not press Enter on your keyboard.
2. Right-click on cmd.exe in the search results, then select Run as administrator from the menu that appears.
3. Type the following command, depending on your version of Office:
4. • Office 2010:
   • CD \Program Files\Microsoft Office\Office14
   • Press Enter. This assumes you installed Office in the default location.

   • Note: If you installed the 32-bit version of Office on a 64-bit system, use this command instead:
   • CD \Program Files (x86)\Microsoft Office\Office14
   • Office 2013:
   • CD \Program Files\Microsoft Office\Office15
   • Press Enter. This assumes you installed Office in the default location.

   • Note: If you installed the 32-bit version of Office on a 64-bit system, use this command instead:
   • CD \Program Files (x86)\Microsoft Office\Office15
4. Type the following command:
5. • cscript ospp.vbs /sethst:kms01.cit.cornell.edu
   • and press Enter.  (Note: The url in the command above begins with kay-emm-ess-zero-one.)
5. Type the following command:
6. • cscript ospp.vbs /act
   • and press Enter.
6. Close the command prompt window.

And you're done for that installation of Office on that computer.

Reference : http://www.it.cornell.edu/services/software_licensing/howto/kms-server-manual.cfm