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How to Fix Call of Duty Dev Error 6068 (DirectX Unrecoverable Error) in Warzone/Modern Warfare

Quick Fix

Force the game to run on DirectX 11 instead of DirectX 12. This is the fix most commonly confirmed by players and guides for Dev Error 6068. 1. Open the Battle.net launcher and select Call of Duty on the left. 2. Click Options > Game Settings. 3. Check the box for Additional command line arguments and type -d3d11 into the box. 4. Click Done, then launch the game and see if the crash returns.

What this error means

Dev Error 6068 shows up on PC in Call of Duty: Warzone, Modern Warfare, Vanguard, and other recent COD titles. The pop-up reads DEV ERROR 6068 DirectX encountered an unrecoverable error, and the game immediately crashes to desktop. The Dev Error 6068 message highlights that there's a DirectX issue, so it can mean your DirectX installation is corrupted. The Dev Error 6068 Warzone issue can also be due to antiquated drivers, certain settings, corrupted game files, etc. This is a Windows-only, PC-specific error — it is not related to your internet connection or account, and does not affect console players.

Step-by-Step Guide

Fix 1: Switch the game to DirectX 11

  1. 1Select Call of Duty from Battle.net. Open Battle.net and select Call of Duty from the left-hand game list.
  2. 2Open Game Settings from Options. Click Options (gear icon) then Game Settings.
  3. 3Enable Additional command line arguments. Tick the box for Additional command line arguments.
  4. 4Enter -d3d11 command line argument. Type -d3d11 (include the dash) into the text field, then click Done.
  5. 5Launch the game. According to some gamers, the error seems to have disappeared when they run Warzone on DirectX 11.

Fix 2: Lower the video memory scale

  1. 1Close Call of Duty completely.
  2. 2Navigate to the game's players folder. Open File Explorer and go to Documents\Call of Duty Modern Warfare\players (or wherever your game saves its data if installed to another drive).
  3. 3Open adv_options.ini with Notepad. Right-click the adv_options.ini file and open it with Notepad.
  4. 4Change VideoMemoryScale value to 0.5. Find the line called VideoMemoryScale and erase the current value for the VideoMemoryScale setting, then input the value 0.5 to be the new replacement value for that option.
  5. 5Save file and relaunch the game. Save the file and relaunch the game.

Fix 3: Update or roll back your GPU driver

  1. 1Update your graphics driver. Some cases of Dev Error 6068 were fixed after graphics card drivers were updated.
  2. 2Update NVIDIA GPU driver via GeForce Experience. NVIDIA users: open GeForce Experience > Drivers tab > Download > Express Installation, then restart your PC.
  3. 3Check for AMD GPU driver updates. AMD users: open AMD Software > System > Software tab > Check for Updates.
  4. 4Perform clean driver reinstall if needed. If you already have the latest driver and still crash, try a clean driver reinstall using Display Driver Uninstaller in safe mode before installing the driver fresh.

Fix 4: Run as administrator and set High priority

  1. 1Enable Run as administrator mode. Right-click the Call of Duty .exe file (find it via Battle.net > Options > Show in Explorer) and choose Properties > Compatibility tab > check Run this program as an administrator.
  2. 2Set Call of Duty process to High priority. Launch the game, then open Task Manager (Ctrl+Shift+Esc), find the Call of Duty process, right-click it, choose Go to details, right-click again, hover Set priority, and select High.
  3. 3Understand high-priority process benefits. Changing the Call of Duty application to a high-priority process can help if your PC isn't handling the CPU and GPU load.

Fix 5: Turn off overlays and Ray Tracing

  1. 1Disable game overlays from multiple programs. Disable overlays for Nvidia GeForce Experience, Steam, Xbox Game Bar, Discord, and MSI Afterburner — several game overlays cause problems with games, especially if your hardware is a little older and struggles to run more intensive games, and closing or preventing these programs can fix Dev Error 6068.
  2. 2Disable DirectX Raytracing in graphics settings. In the in-game Graphics settings, go to Shadow & Lighting and disable DirectX Raytracing.
  3. 3Disable V-Sync and Crossplay. Also disable V-Sync and set Crossplay to Disabled under the Account tab, as these settings have also been linked to the crash.
  4. 4Switch Display Mode to Fullscreen Borderless under Graphics settings — this has fixed the error for some multi-monitor setups.

Fix 6: Check for pending Windows updates and overclocking

  1. 1Check for and install Windows updates. Press Win + I > Windows Update > Check for updates, and install everything available, then restart.
  2. 2Reset CPU or GPU overclocking to defaults. If you overclock your CPU or GPU, reset it to stock/default clock speeds — overclocking your CPU or GPU could be a primary reason for the Dev error, and reducing the clock speed should fix the issue pretty much immediately.
  3. 3Reduce AMD GPU max frequency by -20. AMD-specific: some players found success by opening AMD Radeon Software > Performance > Tuning, setting Tuning Control to Manual, and dragging the Max Frequency slider to -20.

Fix 7: Repair or reinstall the game (last resort)

  1. 1Run Scan and Repair via Battle.net. Open Battle.net, click the gear icon on Call of Duty's Play button, and choose Scan and Repair to fix corrupted or missing files.
  2. 2Uninstall and reinstall the game. If the crash continues, uninstall the game entirely via Battle.net, restart your PC, and reinstall a fresh copy.
  3. 3Understand reinstall necessity for corrupted files. Corrupted Warzone game files can cause all kinds of crashes, and Dev Error 6068 probably isn't an exception, so reinstalling Warzone will replace all its files. Note this is a 50GB+ download, so treat it as a final step.

When to seek further help

If none of the above resolves it, the crash may be tied to failing or incompatible RAM, since some players reported that the error disappeared right after they replaced or upgraded their RAM, so if this is a RAM issue you need to check if you're using faulty or incompatible RAM. At that point, test your RAM with a memory diagnostic tool, try running other demanding games to see if crashes happen elsewhere too, or contact Activision Support directly with your DxDiag report if the problem looks hardware-related rather than software-related.

Sources:

Heads up: this guide was drafted with AI assistance from the real sources listed below, and structured by our team for clarity. It may not cover every possible cause — if it doesn't fix your issue, let us know and we'll take a closer look. See how we create our fixes.

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