Modern Warfare 3 Crashing Issue? Fixes That Work

Updated 14 November 2026 · Standard formula, shown below

Modern Warfare 3 (2023) crashing on PC is a common problem that usually stems from outdated graphics drivers, corrupted shader cache, or unstable overclocks. Most players can fix it by updating drivers, clearing the shader cache, and disabling overlays, with a full reinstall as a last resort.

Why Does MW3 Crash?

Call of Duty: Modern Warfare 3 (2023) is a demanding title that pushes both CPU and GPU to their limits. Crashes can happen for several reasons, often in combination:

Outdated or corrupted graphics drivers – especially on NVIDIA and AMD cards.
Corrupted shader cache – MW3 compiles shaders on first launch; a bad cache causes crashes during gameplay.
Overheating or unstable overclocks – even factory overclocks can be unstable under load.
Background software conflicts – overlays from Discord, GeForce Experience, or MSI Afterburner can interfere.
Insufficient system memory – MW3 can use over 12 GB of RAM at high settings.
Outdated Windows or missing DirectX components.

Identifying the exact cause often requires a process of elimination, but the steps below cover the most common fixes.

Before You Start: Quick Checks

Do these first—they take less than a minute and solve a surprising number of crashes:

Restart your PC – clears temporary memory leaks.
Check your storage space – MW3 needs about 150 GB free; low disk space can cause crashes.
Verify game files – on Steam, right-click the game → Properties → Installed Files → Verify integrity of game files. On Battle.net, click the gear icon → Scan and Repair.
Close background apps – especially browsers, Discord, and RGB software.

If the game still crashes, move to the deeper fixes below.

Update Graphics Drivers

Outdated drivers are the #1 cause of MW3 crashes. Both NVIDIA and AMD release game-ready drivers specifically for Call of Duty titles.

NVIDIA: Download from the GeForce Experience app or the NVIDIA website. Use the “Game Ready” driver, not the Studio driver.
AMD: Download from the AMD Adrenalin software or the AMD website. Choose the recommended driver for MW3.
Intel (if you have an iGPU): Update via Intel Driver & Support Assistant.

After updating, restart your PC and try launching the game. If you recently updated and crashes started, try rolling back to the previous driver version.

Clear the Shader Cache

MW3 compiles shaders the first time you launch it. If that process is interrupted (e.g., you close the game early) or the cache becomes corrupted, it leads to crashes during matches.

Go to Documents\Call of Duty\players (or the MW3 folder in your Documents).
Delete the shadercache folder (or files with “shader” in the name).
Restart the game. It will recompile shaders—let it finish completely before playing.

If you don’t see a shader folder, go to Options → Graphics → Shader Cache in the game and set it to “On” or “Reset.”

Disable Overlays and Background Software

Overlays are notorious for causing crashes in COD titles. They inject code into the game process, which can conflict with anti-cheat or the game engine.

Disable Discord overlay: Settings → Overlay → off.
Disable GeForce Experience overlay: In the app, Settings → General → toggle off “In-Game Overlay.”
Disable MSI Afterburner / RivaTuner – these are common crash culprits.
Disable Steam overlay: Right-click MW3 → Properties → uncheck “Enable Steam Overlay.”

Also close any RGB control software (like iCUE, Razer Synapse) if you have them—they can cause conflicts.

Check Overclocks and Temperatures

An unstable overclock (CPU, GPU, or RAM) is a silent crash cause. Even if your system is stable in other games, MW3’s heavy multi-threaded load can expose instability.

If you have any overclock (XMP for RAM counts), reset to stock speeds in BIOS.
Monitor temperatures with a tool like HWMonitor or MSI Afterburner. Safe ranges: CPU under 90°C, GPU under 85°C.
If temps are high, clean your PC’s fans and make sure airflow is unobstructed.

If the game is stable without overclocks, you can gradually re-enable them, but many players find MW3 requires a small undervolt to stay stable.

Adjust In-Game Settings

Some settings are known to cause crashes on certain hardware. Try these changes:

Set Render Resolution to 100% (not above).
Disable DLSS or FSR – upscaling can cause crashes on some GPUs.
Lower VRAM usage target to 70% or below.
Set Graphics Quality to “Balanced” or lower.
Disable “On-Demand Texture Streaming” – this is a common crash trigger.

If crashes happen only in specific modes (e.g., Warzone), also try turning off “Crossplay” or “Voice Chat” (those have been linked to crashes in some updates).

Reinstall the Game (Last Resort)

If nothing else works, a full reinstall can fix corrupted game files that verification misses. Uninstall MW3, restart your PC, then reinstall. This is time-consuming but often effective.

Before reinstalling, also try repairing DirectX and installing all Windows updates. A clean boot (disable all non-Microsoft services) can also help isolate the cause.

Frequently Asked Questions

Why does MW3 crash on startup?

Startup crashes are usually driver-related or due to corrupted shader cache. Update drivers, clear the shader cache, and disable overlays. If it still crashes, check that your Windows is updated and your system meets the minimum requirements (Windows 10 64-bit, 8 GB RAM, etc.).

What are the minimum PC requirements for MW3?

Minimum: Windows 10 64-bit, Intel Core i5-6600 or AMD Ryzen 5 1400, 8 GB RAM, NVIDIA GeForce GTX 960 or AMD Radeon RX 470, and about 150 GB storage. However, 16 GB RAM is strongly recommended for stable performance.

Can my antivirus cause MW3 to crash?

Yes. Some antivirus software flags MW3’s anti-cheat (Ricochet) as a threat and blocks it, causing crashes. Add the game folder and the Battle.net/Steam executables to your antivirus exclusions. Also disable “Core Isolation” in Windows Security if you suspect it.

Is there a known fix for the “DirectX” error?

The DirectX error usually means your GPU driver is outdated or the game files are corrupted. Update drivers, verify game files, and reinstall the DirectX runtime from Microsoft’s website. Also try disabling “NVIDIA Reflex” if you have an NVIDIA card.

Does playing in windowed mode help with crashes?

Sometimes. Borderless windowed mode can reduce crashes related to fullscreen exclusive mode on some systems. Go to Options → Graphics → Display Mode → Borderless Windowed. It may slightly reduce performance, but it’s worth trying.

Will lowering graphics settings stop crashes?

Yes, if the crash is due to VRAM overload or GPU instability. Lowering settings reduces VRAM usage and GPU load. Set everything to “Low” or “Normal” and test. If stable, gradually raise settings.

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