Fallout 4 — Tips & Tricks
Settings, options and shortcuts in Fallout 4 that most players never find.
Last updated 2026-09-25 · evergreen reference
Not walkthroughs — these are the configuration choices, hidden options and workflow habits that make Fallout 4 run better and feel better. Most of them are not exposed in the menus.
Tips worth knowing
Each one changes something real in Fallout 4.
Cap to 60 FPS, or install High FPS Physics Fix
Fallout 4’s physics is tied to frame rate — above 60 the engine misbehaves. High FPS Physics Fix decouples them and is the clean way to run a 120 Hz display.
Let Buffout 4 tell you which plugin crashed
Buffout 4 writes detailed crash logs to My Games\Fallout4\F4SE. Reading the log beats guessing, especially with a long load order.
Shadow resolution is the biggest free win
iShadowMapResolution defaults to 4096; 2048 is visually near-identical and 512 is a large FPS gain on weak GPUs. Set it through BethINI rather than by hand.
Texture quality depends on your VRAM, not your GPU speed
High for a 4 GB card, Ultra at 6 GB or more. Ultra textures consume a disproportionate share of VRAM and are a frequent crash cause below 4 GB.
Be suspicious of aggressive .ini presets
Presets promising massive gains often strip object fade, grass density and distant detail until the Commonwealth looks empty. Benchmark a known problem area instead of trusting the number.
Habits that save you later
Do these once and stop thinking about them.
Back up your saves
Before any reinstall, driver sweep or mod change, copy the save folder for Fallout 4. Cloud saves are convenient but they can also sync a corrupted file back onto your machine — knowing where the local copy lives is what actually protects you.
Write down what you changed
Launch options, config file edits and INI tweaks are easy to forget. A short note means you can undo a change six months later instead of reverse-engineering your own setup.
Benchmark one repeatable spot
Pick a demanding area in Fallout 4, load the same save and play for the same duration after each change. Judging performance by feel is how people conclude a real improvement did nothing.
Windows-level changes that apply everywhere
Not specific to this game, and worth doing once.
Disable fullscreen optimizations and fix DPI
Right-click the Fallout 4 executable, open the Compatibility tab, tick Disable fullscreen optimizations, then open Change high DPI settings and set the scaling override to Application. This resolves black screens, low-resolution output and alt-tab freezes across a large number of Unreal Engine 3 and older DirectX 11 titles.
Turn off Game Bar, Game Mode and background recording
All three sit in Settings > Gaming. They cost RAM and GPU resources and interfere with fullscreen rendering. Some newer titles do benefit from Game Mode, so test rather than assuming — but start with it off.
Use a high-performance power plan and watch thermals
Balanced and silent profiles let the CPU and GPU downclock under load. Select High or Ultimate Performance, and monitor temperatures — crashes that appear ten minutes in rather than at launch are very often thermal rather than software.
Keep the page file system-managed
Several engines rely on virtual memory even with ample RAM, and disabling the page file is a recurring cause of "out of memory" errors on machines with 32 GB installed. Leave Windows in control of it.
Related pages
This is an independent player reference and is not official documentation for Fallout 4. GameRulePro does not host or link to copyrighted assets. Modding guidance is for single-player use only — never use mods in online multiplayer. Verify current requirements, prices and policies with the publisher before acting.
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