: Get the latest WinTV v10 setup file from the official Hauppauge support site.

: Halfway through the process, an Activation Required screen will appear. Click "Enter Activation Code" and type your 25-digit key. You do not need to include dashes.

: If you have an older device or lost your card, you can buy a standalone activation code from the Hauppauge Webstore for approximately $12.95.