In response to post #57591511. I might be able to help you here, but keep in mind I'm in no way affiliated with the Nexus and this is just a personal advice given out of experience with both managers: This is not the "how to port your NMM mod install over to Vortex and live a happy life", this is a "How to test Vortex using your already downloaded mods, without incurring into NMM generated issues and at the same time keep your old NMM mod install setup and the ability to restore it". - You should use the Vortex "Import from NMM" function right away, at this stage Vortex doesn't perform any activity over your game install/settings, it just import your current "mod install setup" and, if you choose to do so, mod archives. Then if you really want to be sure everything works as intended I suggest you to follow these steps: - Open NMM, create a new profile and switch to it (to keep your current profile intact), go in the Tools menu, select "Uninstall all active mods", get some popcorns and wait. - (Follow this step only if you read clearly what happens during this process) If you really want to be thorough and make sure you have a clean game folder, go back in the Tools menu and select "Purge unmanaged files": this process will remove all files NMM doesn't recognize as base game files or as currently managed by NMM itself, the "base game files" list is not up to date with Creator Club stuff so those files will most likely be removed by it, don't worry, after this step go in Steam, right-click on your game, select Properties, Local Files, and then click on "Verify Integrity of game files" this will fix any missing/edited base game files. - Now you can finally go back to Vortex and start managing your game with it, enjoy! - If you want to test your imported NMM mod setup into Vortex you just need to enable the imported profile!