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Minecraft crash with exit code -1073740791 (0xC0000409)

✅ Verified on 2026-11-15 · Minecraft version 26.3 (2026 year-based numbering) · Platform: PC (Windows, Java Edition)

Quick fix

This Windows STATUS_STACK_BUFFER_OVERRUN crash is most often caused by outdated or broken GPU drivers — update your graphics drivers directly from NVIDIA/AMD/Intel, then relaunch.

Symptoms

Minecraft Java (vanilla or modded) crashes to the launcher during play or world load with exit code -1073740791 (hex 0xC0000409) instead of exit code 1.

Fixes that work

Update graphics drivers

  1. Identify your GPU (Device Manager → Display adapters).
  2. Download the latest driver from the vendor's site (NVIDIA GeForce / AMD Adrenalin / Intel Arc), not Windows Update.
  3. Install, reboot, and relaunch Minecraft.

Source: https://support.curseforge.com/support/solutions/articles/9000233370-minecraft-modpacks-launcher-in-game-issues

Isolate the modloader and mods

  1. Test whether the crash happens only on a specific modloader (Forge/Fabric/NeoForge) — modloader-specific crashes are common.
  2. Launch a clean vanilla profile; if vanilla is stable, remove mods in batches on the modded profile until the crash stops.
  3. Check the newest file in %appdata%\.minecraft\crash-reports for the named mod.

Source: https://support.curseforge.com/support/solutions/articles/9000233370-minecraft-modpacks-launcher-in-game-issues

Frequently asked questions

Minecraft keeps crashing with exit code -1073740791 — is it my GPU?

Very likely. 0xC0000409 crashes are commonly tied to graphics drivers or stack overflow from heavy mods, so update drivers first, then trim mods.