Run the WindowFX installer and open the application. Select Activation Method: Click "Enter Product Key" on the popup screen.
Licensed users with a valid product key are typically eligible for technical support from Stardock, helping them resolve any issues or questions they may have. How to Obtain a WindowFX Product Key Windowfx Product Key
Launch WindowFX; if not activated, a prompt should appear automatically. You can also find it under the Help or About section of the configuration menu. Run the WindowFX installer and open the application