Are you a user of Windows Vista Enterprise or Business edition and would like to know the status of activation of a specific computer? Want to make sure that the computer connected properly to the Key Management Server (KMS) or used your Multiple Activation Key (MAK) properly? Or are you a home user and just want to make sure your computer is fully activated?

Included in Windows Vista is very useful utility that will help you check the status of activation of your computer:

Click on the Start Button and key in CMD and hit Enter to start up Command Prompt.
At the prompt, type in "slmgr.vbs -dli"
After a few seconds you will be presented with a pop-up message with your activation status.