1. Click the Windows Search Icon, and put cmd to open the Command Line Interface

2. Right Click the CMD App and open it as Administrator

3. put the command:
Replace the XXXX-XXXX-XXXX-XXXX-XXXX with the desired license code for the appropriate Windows version blow
For Example:

4. Enter the following commands one after the other
Thats All

2. Right Click the CMD App and open it as Administrator

3. put the command:
Code:
slmgr /ipk XXXX-XXXX-XXXX-XXXX-XXXX
For Example:

4. Enter the following commands one after the other
Code:
slmgr /skms kms8.msguides.com
slmgr /ato
Thats All