Hi there,
For some reasons I uninstalled The Orchestra Complete from Native Access. Now I want to reinstall it, but it does not appear in the list anymore. And when I add the Serial Number, it says that the product is already installed. Frustrating…
You mean this library right?
https://www.sonuscore.com/shop/the-orchestra-complete
It's a third party library, you need to download the files from the manufacturer and locate the files: Setting Up a Third-Party Kontakt Library