Virtual Memory Presets for Modpacks - Reduce memory-related crashes and freezes in large modpacks

An optimization recommended by A StoryWealth, a well-known Fallout 4 mod collection by Exoclyps

Direct Quote from the link: A StoryWealth  - Step 9. Optimizing your Experience:

Why Increase Pagefile Size?

• []Stability: Large mod collections consume a lot of RAM. Increasing the pagefile size provides additional virtual memory, helping to prevent crashes.

  []Performance: A larger pagefile can help with smoother transitions between loading different game assets, especially in memory-intensive scenarios.

  Another Source:

  Starting 4:37, a recommended Pagefile size from a Youtuber: 16GB RAM or more - preset at least 20GB. See Screenshot highlight or video

  FKYJEBdMXBE

  From one of the Youtube Comments:

  Crazy i been having the stutter issue for months on and off, not only this fixed that problem but i also had a screen flicker issue every now and then and this solved it completely. thanks

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  Virtual Memory Presets for Modpacks

  Code at: https://github.com/ZeroXPatch/Projects-for-Nexus-Mod/blob/main/PagefilePresetTool.py

  If you’re not sure which preset to pick, 20GB is a generally safe choice, but it will use more disk space than most presets.

  Virtual Memory Presets for Modpacks is a small Windows tool that helps you switch your Virtual Memory (pagefile) to proven, easy presets for modding.

  Big modpacks can cause sudden memory spikes during loading, area transitions, long play sessions, or when multiple mods fire at once. When that happens, a sensible pagefile preset can help reduce crashes, freezes, and “out of memory” moments.

  This tool gives you a few safe presets under 20GB, plus a Windows Default option, and lets you backup/restore your current settings.

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  What This Tool Does
  • []Lets you pick a Virtual Memory preset (8GB / 12GB / 16GB / 20GB)

    []Includes Windows Default (System-managed) if you prefer auto settings

    []Backup your current pagefile settings to a JSON file

    []Restore settings from a JSON backup

  • Shows your current pagefile state inside the app
    

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    Presets Explained (Pick What Fits Your Modpack)

    Windows Default (System-managed)

    Benefit: Windows adjusts the pagefile automatically based on your system. This is usually fine for light modding, and it’s the simplest option if you don’t want to tune anything.

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    8GB (Light Modding)

    Best for: Small-to-medium mod lists, mostly vanilla assets, a few gameplay/UI mods.

    Benefit for modding: Adds a basic safety cushion for short memory spikes. Helps reduce random crashes that can happen during loading screens or menu transitions, without taking much disk space.

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    12GB (Moderate Modding)

    Best for: Medium modpacks, mixed gameplay + visuals, longer play sessions.

    Benefit for modding: A balanced preset that improves stability when lots of mods are loaded and the game’s memory usage climbs over time. Great if you get occasional stutter or rare crashes after playing for a while.

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    16GB (Heavy Modding)

    Best for: Large mod lists, script-heavy mods, world expansions, busy gameplay setups.

    Benefit for modding: More breathing room when many mods run at once. Helps prevent crashes during heavy transitions (loading new areas, fast travel, entering dense zones) and reduces “everything loads at once” memory spikes.

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    20GB (Large Modpacks – Recommended by StoryWealth)

    Best for: Big modpacks, high-res textures,