I bought movie studio platinum 13 about a year ago and have used it just fine. When I got a new laptop I dowloaded the trial and was going to enter my serial number to activate my copy once the trial was installed. I never got around to activating it before the trial ran out. Now it brings me the trial expired thing when I try to use it with a place to enter the serial number. when I enter my serial number it restarts and brings the same trial expired screen.