If you already purchased the software but lost the serial number, contact with proof of purchase — they may retrieve it for you.
When you purchase Magix Photostory CD DVD 10 Deluxe, you'll receive a serial number that unlocks the full range of features and tools. Without a valid serial number, you'll be limited to a trial version of the software, which may not provide all the features and functionality you need. magix photostory cd dvd 10 deluxe serial number