Log into the CyberLink Members Zone . Your registered products and their corresponding keys are often stored under your profile for easy access.
Ensure you have an active internet connection. The software needs to "call home" to verify the license with CyberLink's servers. Troubleshooting Common Activation Errors Cyberlink activation code
This happens if you've reinstalled the software on multiple machines or upgraded your hardware frequently. In this case, you must contact CyberLink Customer Service to request a key renewal. Log into the CyberLink Members Zone