Did you know that you can check whether your Windows Vista has been activated or not via the command line?
All you have to do is:
- Click the Start button and type “cmd” (without quotes) in the search box and then hit Enter on your keyboard
- You’ll now see the command line window, in the command line type:slmgr.vbs -dliand hit hit Enter on your keyboard
- A new window will pop-up and it will display your Windows Vista License Activation Status

Check Windows Vista Activation Status