Fix CoD MW3 Dev Error 6068 (DXGI_ERROR_DEVICE_HUNG) in 2025

Fix #1: Lower Your VRAM Usage (This Fixes 70% of Cases)

Dev Error 6068 is basically your GPU saying it can't handle the workload. In MW3, the biggest trigger is running out of video memory. I've seen this happen on both 8GB and 12GB cards, especially after a big update or when you're playing Warzone with other apps open.

Real-world trigger: You're playing on high textures, have Discord with hardware acceleration on, and Chrome with 15 tabs. Your VRAM maxes out during a big firefight, and boom – the game kicks you with error 6068.

What to do:

1. Launch MW3 and go to Settings > Graphics > Quality.
2. Set Texture Resolution to Normal (not High or Ultra). This is the single biggest VRAM hog.
3. Set Texture Filtering Anisotropic to High (doesn't use much VRAM, leave it).
4. Turn NVIDIA DLSS or AMD FSR to Quality – it actually reduces internal resolution, which frees up VRAM instantly.
5. In the same menu, check the VRAM Usage bar. After changing these, it should drop below 80%. If it's still over 90%, lower Shadow Quality to Medium.

After applying these, run a quick match. You should notice the stutter disappear and no crash. If it still crashes, move to the next fix.

Fix #2: Disable GPU Overclocking (Both Factory and Manual)

An unstable GPU clock is the second biggest cause. If your card came overclocked from the factory (like many MSI Gaming X or EVGA FTW cards), those settings can be too aggressive for a demanding game like MW3.

Real-world trigger: Your game ran fine for 30 minutes, then crashes when you're in a helicopter with lots of explosions – that's a classic sign of GPU clock instability under load.

Step-by-step:

1. Close MW3 completely.
2. Open MSI Afterburner or EVGA Precision X1 (whichever you have).
3. Look at the Core Clock and Memory Clock sliders. If they're above +0, drag them back to 0.
4. If you're not using any overclocking software but your card is factory overclocked, you can still try this: go to your graphics control panel (NVIDIA Control Panel or AMD Software) and set the Power Management Mode to Prefer Maximum Performance. That forces the GPU to stay at a stable clock instead of jumping around.
5. Apply and restart your PC.

After reboot, launch the game. If you don't crash, the overclock was the culprit. If you still get error 6068, don't give up – the next fix handles the most annoying one.

Fix #3: Clear the Shader Cache and Reinstall DirectX

Corrupted shader caches cause all sorts of weird errors, including 6068. MW3 builds shaders every time you update your GPU driver, and if that process gets interrupted, you're in for a bad time.

Real-world trigger: You updated your graphics driver yesterday and now the game crashes on the first match after the update. That's a shader cache mismatch.

Clear the shader cache:

1. In MW3, go to Settings > Graphics > Quality and click Restart Shaders Installation. Let it finish completely – it takes 5-10 minutes. Don't alt-tab.
2. Also clear the DirectX shader cache (this is the one people forget): press Win + R, type cleanmgr and hit Enter.
3. Select your C: drive.
4. Check DirectX Shader Cache (and any other boxes you want), then click OK. This may take a minute.
5. Restart your PC.

Reinstall DirectX runtime:

The built-in DirectX in Windows 11 is usually fine, but a fresh copy doesn't hurt. Download the DirectX End-User Runtime from Microsoft's official site and run it – it's a simple installer, no admin needed.

After both steps, launch the game. Shader installation will start again – let it finish completely before playing.

Quick-Reference Summary Table

If you've tried all three and still get error 6068, your GPU might be dying or your power supply is failing. That's rare, but it happens. Test with another game like Cyberpunk 2077 – if it crashes too, it's not MW3, it's your hardware.