That often drives players to look for ways to improve the visuals, and one of the first things they're likely to notice is Fallout 4's High Resolution Texture Pack (often referred to as the HD ...
in total including the base Fallout 4 + ALL DLC (NOT the high resolution texture pack), it'll be around 68GB. However if you use the downgrader, you'll need roughly 100GB, this can be cleaned up ...