Hello, I just upgraded from Music Maker 2019 to 2020 (Premium, both)and I am using Windows 10 Professional on my PC. I selected all my Sound Pools and Instruments, and although the Sound Pools work fine, half of my instruments I have will not work. I get the message "not activated" (through they were), and then another message about "can't find ____ file." I tried many things, over many hours, following the advice from previous forum questions and answers, but nothing is working, and I have completely re-installed the 2020 Premium program numerous times. I tried going to the Magix Store to "activate" them, but no luck. I tried going to "Purchase", hoping it would let me re-download the instruments (without paying for them again/without charge), but it always tries to charge me again for each instruments. I do have all the instruments on my hard drive(s), but nothing seems to get Music Maker to recognize them. Please help, since I'm at my wits' end and totally frustrated. Thank you for all assistance! I'm attaching screen shots of the error messages, just in case.