How to Reactivate NPAV key?

If you have change any hardware of your machine then you have to reactivate your NPAV Key

Steps for Reactivation key

1. Open topup and enter same key on New Key text filed
2. Fill other text fields with valid information
3. Go for Activate / Press Activate Button
4. It will show you Authentication message
5. After 10 second of authentication message open the Reactivation window