Problem with installing Premiere and Photoshop Elements 2021

Hi everyone,

I installed a trial version of Premiere and Photoshop Elements, after a week a bought the full version. I got my serial number and everything, but the trial version is still on (so on the videos I still have the black line). It anyone know how to change the trial version or where to find the table for writing the serial number? The table didn´t open anywhere after buying the full version. Thank you very much!