Fallout 4

From PCGamingWiki, the wiki about fixing PC games

For the VR version, see Fallout 4 VR.

Fallout 4
Fallout 4 cover
Bethesda Game Studios
Bethesda Softworks
Creation Engine
Release dates
Windows November 10, 2015
Fallout 4 guide on StrategyWiki
Fallout 4 on MobyGames
Fallout 4 on Wikipedia
Fallout 1997
Fallout 2 1998
Fallout Tactics: Brotherhood of Steel 2001
Fallout 3 2008
Fallout: New Vegas 2010
Fallout 4 2015
Fallout Shelter 2016
Fallout 4 VR 2017
Fallout 76 2018

Key points

Extensive modding support and community.
Frame rates above 60 FPS may cause the game physics to behave strangely and the lockpicking/hacking mini-games to behave erratically.[1]

General information

PC Report
Bethesda Forum for Hardware & Software Issues on PC
Steam Community Discussions


Source DRM Notes Keys OS
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Incomplete installer.[2]
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Icon overlay.png
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Game of the Year Edition also available.
Icon overlay.png
Game of the Year Edition also available.
Green Man Gaming
Icon overlay.png
Game of the Year Edition also available.
Humble Store
Icon overlay.png
Game of the Year Edition also available.
Icon overlay.png
Game of the Year Edition also available.
All versions require Steam DRM.
The Fallout Pip-Boy App is available for Android, iOS, and Windows Phone. This feature can be enabled under Options, Gameplay, by setting Pip-Boy App Enabled to On.

Downloadable content (DLC) and expansions

Name Notes
Season Pass Contains all paid DLC.
Wasteland Workshop
Far Harbor
Contraptions Workshop
Vault-Tec Workshop
Nuka World
High Resolution Texture Pack (Free) Optional, much higher-quality textures for high-end machines. Requires an additional 58 GB of space. 8GB of RAM and VRAM are recommended.[3]

Essential improvements[edit]

Skip intro videos[edit]

Modify Fallout4Custom.ini[4]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Custom.ini or create it if it does not exist.
  3. Add or modify the following lines under [General]:



BethINI is a .ini optimizer that also works as a configuration utility. It has well tested and optimized presets that could improve performance and fidelity.
Download BethINI[5]
  1. Download BethINI.
  2. Extract the contents and run BethINI.exe.
  3. In the Setup tab make sure Fallout 4 is selected as Game.
  4. In the Basic tab choose either Vanilla or BethINI presets and choose one of the available presets. BethINI presets are optimized and trimmed versions of Vanilla presets.
  5. Modify settings in each tab as desired.
  6. After finished click Save and Exit in the Basic tab, BethINI will sort your .ini files alphabetically and merge already existing tweaks in your previous .ini files.


It also supports other Bethesda titles such as The Elder Scrolls V: Skyrim Special Edition, Fallout 3, and Fallout: New Vegas.


Unofficial Fallout 4 Patch[edit]

A comprehensive bug fixing mod that aims to eventually fix every bug with Fallout 4 not officially resolved by the developers.


Dynamic Performance Tuner and Load Accelerator[edit]

Adjusts shadow distance and volumetric lighting and godrays quality dynamically to achieve targeted frame rate.
Disables frame capping during loading screen to accelerate loading speed.
Installation and configuration[7]
  1. Download the archived file and extract dxgi.dll, dynaperf.ini and the corresponding fallout4-addresses-x.x.x.x.ini file depending on your game version to game directory.
  2. If no corresponding fallout4-addresses-x.x.x.x.ini file is available for your game version either read the mod description page to create a new memory configuration file for your game version or download one that has been already created for your game version by the community. (e.g. Configuration Files For Dynamic Performance Tuner And Load Accelerator mod)
  3. Open dynaperf.ini with a text editor and modify the following key settings:
  • fTargetFPS=[60] - Target FPS is the highest FPS that the game will be allowed to run at, and is also the baseline for 100% load.
  • fShadowDirDistanceMin=[2500] - Minimum possible shadow distance. (e.g. 3000 from the Low quality preset)
  • fShadowDirDistanceMax=[12000] - Maximum possible shadow distance. (e.g. 20000 from the Ultra quality preset)
  • bLoadCapping=[0/1] - Setting it to 1 enables frame capping during loading screens which disables the loading speed acceleration.


Since the values are changed dynamically by modifying the values in-memory, the mod is version-dependent and each update in the game executable requires a new memory mapping.
To use it with ReShade graphics mod rename ReShade's dxgi.dll to dxgi_linked.dll.[6]


Fixes stuttering issues when there is no more available video memory, occurs when using high resolution texture mods.
Can force V-sync, includes a frame limiter to help prevent stutter.
Installing and Configuring ENBoost[citation needed]
  1. Download the latest version of ENBoost for Fallout 4.
  2. Unzip all files from the Patch folder in the archive into the installation folder. [See Notes]
  3. Open enblocal.ini with text editor, modify the following values:
  • ApplyStabilityPatch=[false/true] - Stability fixes, the effectiveness varies from user to user. If this worsens the performance, set to false.
  • UsePatchSpeedhackWithoutGraphics=[false/true] - Recommended to enable for maximum performance.
  • ForceVideoMemorySize=[false/true] - Allocates more video memory from RAM and the pagefile.
  • VideoMemorySizeMb=[RAM + VRAM - 300MB for SSDs, or the VRamSizeTest result - 300MB for HDDs] - [See Notes] Forces video memory available in Mebibytes.
  • ForceVSync=[false/true] - Different than the game's default Vsync, and helps prevent stuttering and screen tearing.
  • VSyncSkipNumFrames=[0, 1, 2, or 3] - Mainly for users with high refresh rate monitors (>60Hz) and should be set to '0' for other users.
  • EnableFPSLimit=[false/true] - Caps the frame rate to assigned value. This will solve the physics issues relating to high frame rates, may also solve screen tearing.
  • FPSLimit=[61.0] - The frame rate you wish to cap the game at.
  • DisableFakeLights=[false/true] - Disables rim lights for all characters. Has a small performance impact.


If you use ReShade or any other tool that uses the d3d11.dll file, rename that tool's DLL file to dxgi.dll.
If the game is installed on an SSD, do not use the VRamSizeTest utility, as it also allocates some HDD space, which can affect your SSD's life.
Use the VRamSizeTest utility if the game is installed on an HDD to correctly determine the amount of memory that can be allocated to the game.
Some users report that borderless windows setting along with frame limit increase FPS stability in the game.

Special K[edit]

Improves frame pacing, introduces texture caching system to reduce VRAM consumption, eliminates texture streaming bottlenecks and prevent memory fragmentation.

Game data[edit]

Gameplay settings.
Gameplay settings.

Configuration file(s) location[edit]

System Location
Windows %USERPROFILE%\Documents\My Games\Fallout4\
Linux (Proton) <Steam-folder>/steamapps/compatdata/377160/pfx/[Note 1]

Save game data location[edit]

System Location
Windows %USERPROFILE%\Documents\My Games\Fallout4\Saves\
Linux (Proton) <Steam-folder>/steamapps/compatdata/377160/pfx/[Note 1]

Save game cloud syncing[edit]

System Native Notes
Steam Cloud
Stores up to 1 GB of game saves online (maximum 1000 files).

Video settings[edit]

Launcher settings.
Launcher settings.
Launcher advanced settings.
Launcher advanced settings.
Video settings.
Video settings.
Graphics feature State WSGF Notes
Widescreen resolution
Supports 16:9 and 16:10 only.
Use Flawless Widescreen.
Use Flawless Widescreen or TruBy9.
4K Ultra HD
See Widescreen resolution.
Field of view (FOV)
80° horizontal. Use Flawless Widescreen or see Field of view (FOV).
Missing widescreen resolutions. See Widescreen resolution.
Borderless fullscreen windowed
Anisotropic filtering (AF)
Up to 16 samples.
Anti-aliasing (AA)
FXAA and TAA in launcher. Can see SMAA for alternative anti-aliasing.
Vertical sync (Vsync)
Enabled by default, may cause input lag. See Vertical sync (Vsync).
60 FPS
120+ FPS
Going above 120 will cause some major physics issues at higher frame rates. You may experience some between 61-120, but it's much more rare. If you must go over 60, lock the frame rate at 120 with something like RivaTuner.

Widescreen resolution[edit]

Modify Fallout4Prefs.ini[8]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Prefs.ini.
  3. Under [Display] modify the following parameters:
iSize W=XXXX
iSize H=XXXX

Field of view (FOV)[edit]

Modify Fallout4Custom.ini[4]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Custom.ini or create it if it does not exist.
  3. Under [Display] add or modify the following parameters:


fDefault1stPersonFOV controls first person camera and PipBoy, fDefaultWorldFOV controls third person camera.
Modifying fDefault1stPersonFOV will also modify PipBoy's field of view which might be an undesirable side effect for some users. In that case consider using Flawless Widescreen.

Vertical sync (Vsync)[edit]

Modify Fallout4Prefs.ini[8]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Prefs.ini.
  3. Under [Display] change iPresentInterval to 0.


Disabling vertical sync will cause frame rate to exceed 60 FPS which may cause physics issues and make the game unstable. See Frame rate capping.

Disable Depth of Field[edit]

Modify Fallout4Prefs.ini[citation needed]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Prefs.ini.
  3. Find the following lines, and set them to these values.


Will cause underwater effects to disappear.


SMAA Anti-Aliasing with SweetFX[9]
  1. Download custom SweetFX 1.5.1
  2. Extract archive contents to executable location, and replace DLLs with ones from x64 folder


In-game TAA has a blurriness that disorientates some people. Injected SMAA gives a crisper picture, also has smoother edges than FXAA.

Input settings[edit]

Input settings.
Input settings.

Vertical sensitivity[edit]

Modify Fallout4Custom.ini[citation needed]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Custom.ini.
  3. Add the following lines.

Audio settings[edit]

Audio settings.
Audio settings.
Most languages are region locked by default.
Audio feature State Notes
Separate volume controls
Master, voice, music, sound effects, footsteps, and radio.
Surround sound
Up to 7.0 output.[13]
Closed captions
Mute on focus lost
EAX support
Use X3DAudio HRTF.


Available in English, French, Italian, German and Spanish in most European countries.
Russia and Poland are limited to Russian and Polish, the English language is also available.
The global version has all the languages available, an example is purchasing the game on Green Man Gaming which has all languages, even Japanese.[14]
Language UI Audio Sub Notes
Not available in Japan.[15]
Traditional Chinese
Asia only, not included in Japan.[15]
Europe and North America only.[15]
Japan only. No other languages are included.[15]
Brazilian Portuguese
Central and South America only.[15]
Fan audio dub (machine translation) on Zone of Games.
Europe, North, Central and South America only.[15]

VR support[edit]

3D modes Native Notes
Nvidia 3D Vision
See Helix Mod: Fallout 4.
G3D, Z3D, DirectVR
Excellent 3D environment. Officially supported Game, see vorpX gamelist.

Issues unresolved[edit]

Crash to desktop during Hunter/Hunted[edit]

This issue blocks the continuation of a quest-chain.
Approaching the quest objective will result in a crash to desktop without any errors. As of current, if you wish to progress the quest-line, you will have to teleport into the related building and then teleport to an area that does not crash the game.
Teleport into building of interest to progress[16][17]
  1. Open the console and enter player.moveto 00064dfc.
  2. Walk around until character of interest spawns. Deal with the situation accordingly.
  3. When you're done with your business inside the building, open the console and enter coc sanctuaryExt.


You may walk freely within the building, but exiting it will crash the game.
Go into Steam offline mode and turn off internet connection (or block the game in firewall)

Entering Cambridge Police Station makes the player fall through the ground[edit]

This issue may block the continuation of a quest-chain.[17][18]
You may speak to characters inside the building if you enable noclip: open the console and enter tcl.
To exit the building afterwards, as the doors did not spawn in, you must teleport to another location, i.e. coc sanctuaryExt.

Issues fixed[edit]

Crash to desktop on Nvidia Turing GPUs (RTX, GTX 16 series)[edit]

Nvidia FLEX features have to be disabled.
Turn off weapon debris in the launcher[19]
  1. Open the Fallout 4 launcher, then under Options, select Advanced.
  2. Click on the Weapon Debris drop down list, select Off.

God rays performance fix and no pixelation[edit]

Modify configuration files
  1. Go to the configuration file(s) location.
  2. Inside of Fallout4Prefs.ini, change iVolumetricLightingQuality= to iVolumetricLightingQuality=3. Or set god rays quality to Ultra in launcher.
  3. Open Fallout4.ini.
  4. Add sStartingConsoleCommand=gr grid 12;gr scale .8;gr maxcascade 1 under [General] section


Ultra quality god rays at same performance as low setting.
Pixelation fix won't work at lower qualities. Value must be set to ultra.

Graphical issues while raining[edit]

Instructions[citation needed]
  1. Open the Fallout 4 launcher, then under Options, select Advanced.
  2. Check the Screen Space Reflections checkbox as well as the Wetness checkbox.


Unchecking Screen Space Reflections while Wetness is checked, Could result to this problem, whilst raining.

Broken shadows while playing[edit]

Dark layer example.
Dark layer example.
Ultra-widescreen and 4K Ultra HD resolutions are affected by this bug.[20][21]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Prefs.ini.
  3. Find the following line, and set it to this value.

Console not opening when pressing the tilde key[edit]

Instructions[citation needed]
  1. Press Win+R and type control input.dll then select OK.
  2. Click on the Add a language button, then find the English language and Double Click on it.
  3. Select English (United States), then push the Add button located on the bottom right side.
  4. Press Alt+ Shift to switch to the English keyboard layout.
  5. Launch the game and push ~.

Alternatively, Spanish/Latin American keyboards can open the console using Ñ instead, without changing any settings.

No in-game audio[edit]

Set audio playback to 16bit 48000 Hz[24]
  1. Navigate to audio playback devices (right-click on speaker icon)
  2. Highlight speakers (will probably be one with a green tick)
  3. Click "properties" and select advanced tab
  4. Change the "default format" to 16bit 48000 Hz (DVD Quality)

Major screen tearing when Windows Aero is disabled while in a borderless mode[edit]

This is due to Aero's double buffering.
Switch Theme to Windows Aero[25]
  1. Right-click on the desktop.
  2. Press Personalize.
  3. Choose a Windows Aero theme.
  4. Press Window Color.
  5. Save changes.

Permanent slow-motion while playing[edit]

Erase configuration files[citation needed]
  1. Go to the configuration file(s) location.
  2. Delete the configuration files.

Frame rate locked at 48 FPS[edit]

Disable vertical sync[citation needed]
See Vertical sync (Vsync).

Mouse cursor not visible in menus[edit]

Instructions[citation needed]
  1. Go to the configuration file(s) location.
  2. Open Fallout4Prefs.ini.
  3. Find the following line, and set it to this value.

Slow Loading Screen[edit]

GPU load at the loading screen will be higher.
Use Load Accelerator Mod[26]
  1. See Dynamic Performance Tuner and Load Accelerator.



Protocol Port(s) and/or port range(s)[27]
TCP 27000
UDP 28000
Universal Plug and Play (UPnP) support status is unknown.
These ports are used to communicate with the Pip-Boy app.

Other information[edit]


Technical specs Supported Notes
Direct3D 11
Shader Model support 5.0
Executable 32-bit 64-bit Notes


Middleware Notes
Physics Havok,[28] Nvidia FLEX[29] Nvidia FLEX used for optional weapon debris and is exclusive to Nvidia GPUs.
Interface Scaleform
Cutscenes Bink Video 1.992e

System requirements[edit]

Minimum Recommended
Operating system (OS) 7, 8, 10
Processor (CPU) Intel Core i5-2300 2.8 GHz
AMD Phenom II X4 945 3.0 GHz
System memory (RAM) 8 GB
Hard disk drive (HDD) 30 GB
Video card (GPU) Nvidia GeForce GTX 550 Ti
AMD Radeon HD 7870
2 GB of VRAM
A 64-bit operating system is required.


  1. 1.0 1.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/377160/ in addition to or instead of this directory. The app ID (377160) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.


  1. Fallout 4 - Game Engine Speed Tied to Framerate - YouTube
  2. PSA: Fallout 4 physical disk only has 5GB of data, requires 19GB download : pcgaming
  3. Fallout 4 Free Updates – High Resolution Texture Pack & PS4 Pro Support
  4. 4.0 4.1 AFK Mods - [Fallout 4] - Knowledge Base - Useful INI Settings - last accessed on 2017-11-17
  5. BethINI at Fallout 4 Nexus - Mods and community - last accessed on 2017-11-17
  6. Dynamic Performance Tuner and Load Accelerator. - Page 2 - File topics - The Nexus Forums - last accessed on 2019-01-16
  7. Dynamic Performance Tuner and Load Accelerator. at Fallout 4 Nexus - Mods and community
  8. 8.0 8.1 Verified by User:JPulowski on 2017-11-17
  9. SweetFX – SMAA
  10. keypad binding....RAGE! - PC - Bethesda Softworks Forums
  11. Verified by User:Anonymous on 2015-12-01
  12. Keyboard and Gamepad Simultaneously
  13. PC Gaming Surround Sound Round-up
  14. http://www.subeimagenes.com/img/screenshot061-1594937.jpg
  15. 15.0 15.1 15.2 15.3 15.4 15.5 Bethesda Softworks Releases Blog Post on Localisation, Specs, and Release Date of Fallout 4
  16. Fallout 4 Hunter/Hunted CRASH FIX
  17. 17.0 17.1 Verified by User:Tmplt on 2015-11-16
  18. Cambridge police station glitch :: Fallout 4 General Discussions
  19. https://www.nvidia.com/en-us/geforce/forums/moar-games/35/283056/rtx-2080-and-fallout-4/2064003/
  20. View topic - Fallout 4 | WSGF
  21. No 21:9 resolution? :: Fallout 4 General Discussions
  22. View topic - Fallout 4 | WSGF
  23. Fallout 4 Widescreen lighting problem
  24. https://www.reddit.com/r/fo4/comments/3s4xxy/no_audio_on_fallout_4_anyone_else_with_the_same/cwu3rds
  25. Borderless Window Mode Screen Tear Fix : fo4
  26. Verified by User:Blackbird on 2018-01-23
    Loading screens are indeed tied to frame rate so this helps a lot when the game is on SSD
  27. AllIntensivePorpoise comments on Pipboy App Connection - No Devices Found
  28. Havok's Blog Post: Congratulates all of the Award-Nominated Developers at E3 2015; Many Top Titles Utilizing Havok Tech, Congratulations to Fallout 4 and Many Others
  29. Fallout 4 beta patch adds Nvidia FLEX based particle debris effects | PhysXInfo.com