For users who have purchased the Ultra or Standard (perpetual) editions of CyberLink PowerDVD 23, the product activation window, where you enter your product key, is displayed at first launch after installation. To view the activation window, just double-click on the PowerDVD desktop shortcut after installing PowerDVD.

If you were using PowerDVD Essential and then purchased PowerDVD Ultra/Standard, you must uninstall the Essential version and then download and install PowerDVD Ultra/Standard from the purchase confirmation e-mail you received when you purchased CyberLink PowerDVD from the CyberLink Store.

PowerDVD Essential cannot be activated with a product key. You must uninstall the Essential version first, and then install the full Ultra/Standard editions.

If you purchased the PowerDVD 365 subscription, there is no need for a product key. Just download and install the CyberLink Application Manager from the below link, and then sign in with your CyberLink account to download and install your software.

https://www.cyberlink.com/downloads/application-manager/download_en_US.html