Hence, you are recommended to check the integrity of the game files once the Fallout 4 black screen issue occurs. When the Fallout 4 game files are corrupted or missing, you will meet the Fallout 4 black screen on startup. Read More Method 1: Check the Integrity of the Game Files Antivirus on your PC triggers the black screen Fallout 4.The graphics settings in the Fallout 4 are too high.You run the Fallout 4 game in an incompatible mode.The Steam and Fallout 4 are not installed on the same drive.The Fallout 4 game files are corrupted or missing.Here, several main reasons are summarized as follows. Multiple factors can cause the Fallout 4 black screen error. Reasons behind the Fallout 4 Black Screen For instance, they may encounter Fallout 4 black screen on startup, Fallout 4 black screen after loading, or even Fallout 4 black screen during the game play. Method 4: Lower Graphics Settings in the GameĪ large number of gamers claim the Fallout 4 black screen, because this error can occur in various cases.Method 3: Run Fallout 4 in Compatible Mode.Method 2: Ensure that Fallout 4 and Steam Locate on the One Drive.Method 1: Check the Integrity of the Game Files.Reasons behind the Fallout 4 Black Screen.