Once done, open Fallout 76 Properties by right clicking on the game and switch to the Local Files tab and select the Verify Integrity of Game Files… option. If the issue persists, open the launcher and select Fallout 76 then go to Game Options and select the Scan and Repair option.Īlso, Steam users can verify the integrity of game files by opening Steam and heading over to Library. The first step to fix the crashing issue on PC (Microsoft Windows) is to check whether the latest AMD or Nvidia video card drivers are installed.Īfter that, ensure that Fallout 76 is being launched with administrative privileges. So, let’s take a look at the official workarounds to fix the crashing issue on PC, PlayStation 4, and Xbox One along with the unknown error message fix. However, issues like Fallout 76 crashing and the unknown error message can spoil the user experience. Fallout 76 has been quite popular ever since it came out on Microsoft Windows, PlayStation 4, and Xbox One in November 2018.