I have recently started using my Magix Movie Edit Pro MX Plus video software after a hiatus of a few years. I am having problems rendering my videos as an MPEG-4. A few days ago, I received a codec allowing me to do this and I was able to render ONE video using that codec. But now it tells me I need another one, but when I try to order one, I am asked if I am a guest or and administrator. This is madening, as I have never had this problem before. I was told that the last codec would be a ONE TIME activation. So please can somebody tell me how I now suddenly start to run my own video editing software as an administrator as I cannot find out how to do this. And how many codecs am I going to suddenly need. Do I need one for each video I want to render, or is one enough. Please help me as I am upset about this now. I am running Windows 10.