Does not matter that much, since we always want to have the master files cleaned. To avoid your primary drive being used for all the mod installations. The best way to do this is by uninstalling everything, and start all over. In this part, we will start with the basics and preparation.
Only be careful for mods which require master mods in that case.
Skyrim:SE is probably one of the most popular mod-able games on Nexus Mods now! Nevertheless I used the Nordic guide as a guideline for this mod list, because thats where it is a great guide for. Every year the mods are getting better and better, and new files and updates are being released for Skyrim:SE all the time.