The directory folder for Fallout 4 can be accessed by clicking the directory.The following instructions will help you: Modding Fallout4 requires a few adjustments to its game files before you can install mods. We’re going to assume you’ve already installed Fallout 4. The mods for Fallout 4 are installed by means of the Nexus Mod Manager. The following is a description of the most commonly used method. 1.13 Final Words How To Install Fallout 4 Modsįallout 4 mods can be installed in multiple ways.