Hey - just thought users of this guide might find this info handy: NMM is a bad idea with Witcher 3. It doesn't handle everything that a lot of mods cover (especially the really fun mods). So, when installing mods what you'll want to do instead is download and install manually according to the mod's instructions for installation. If it's a script or xml based mod (or both) , then use "Script Merger" (which you can find on the nexus) to merge it with your other mods. Don't worry - manual installation is usually pretty easy. (It was designed that way - drag and drop a folder is usually all you need to do.)