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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchCall of Duty crashes on Windows 11 can have different causes depending on the game, launcher, and when the failure occurs. Start by noting the exact Call of Duty release, whether you use Steam or Battle.net, when it crashes, the full error text or code, your graphics card, and whether the problem began after a game, Windows, or driver update. Then work through the checks below in order, using the instructions for your specific title.
1. Record what happens before changing settings
A crash at startup, during shader preloading, or in a match does not necessarily have the same cause. Write down the details Activision asks for when investigating PC crashes: the game and platform, crash timing and frequency, graphics card, error code, and steps that reproduce the problem. Activision’s PC Crash Report explains how to submit those details.
- Which Call of Duty game is affected, and does it launch through Steam, Battle.net, or another supported distribution?
- Does it close on startup, freeze at a particular screen, crash while preloading shaders, or fail during a match?
- What is the exact error message or code? If there is none, note that too.
- Did the issue begin after a game, Windows, graphics-driver, or other software update?
- What graphics card is installed, and does the crash happen every time or intermittently?
2. Update Windows and the graphics driver for your exact game
Install available Windows updates, restart the PC, and check Activision’s current support page for the specific Call of Duty release. Activision advises keeping the operating system and drivers up to date, but recommended graphics-driver versions vary by game and GPU maker; an old version listed for another title is not a universal recommendation. See Activision’s PC video-card driver instructions for its current title-specific guidance.
Identify your graphics card with DxDiag
- Press Windows key + R, type dxdiag, and press Enter.
- In the DirectX Diagnostic Tool, open the Display tab and note the device name and driver details. If the PC has multiple graphics devices, check each relevant display tab.
- Use the appropriate GPU maker’s official site—NVIDIA, AMD, or Intel—to find and install the driver recommended for your card and game.
- Restart Windows and test the game before making another change.
3. If you play Warzone, let shader preloading finish
Activision’s Warzone PC troubleshooting guidance says to allow shader preloading to complete before leaving the Main Menu; interrupting preloading can affect performance. This is Warzone-specific advice, so follow the instructions shown by your own Call of Duty release rather than assuming every title uses the same process. The Warzone page also notes that the latest Windows 11 version improves NVIDIA stability. Check Activision’s Warzone PC troubleshooting page for current title-specific guidance.
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4. Repair or verify the game files in your launcher
Damaged or incomplete installation files are a reason to try the launcher’s repair check. Use the option for the launcher and title you actually have installed; the following steps are the ones Activision lists for Warzone.
Battle.net: Scan and Repair
- Open the Battle.net desktop app and select Call of Duty: Warzone.
- Open the options menu beside the Play button.
- Select Scan and Repair, then Begin Scan.
- When the scan and any repair finish, launch the game and retest.
Steam: verify game-file integrity
- Open Steam and go to Library.
- Right-click the installed Warzone entry and choose Properties.
- Select Installed Files, then Verify integrity of game files.
- Wait for verification to finish before launching the game.
Launcher labels and available repair options may differ for other Call of Duty releases. Use that game’s current Activision or launcher support instructions if the Warzone-specific options above do not match your installation.
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5. Test for a conflict with background software
Overlays, monitoring tools, capture software, RGB utilities, and other applications can interfere with a game. Activision’s Warzone guidance names NZXT CAM, MSI Afterburner, and Razer Cortex as possible conflicts in that context. That is a reason to test with them closed—not proof that any one application is responsible, or that the list applies to every Call of Duty title.
- Save your work, then temporarily close overlays and other nonessential background apps, especially any recently installed or updated around the time crashes began.
- Launch the game and try to reproduce the crash.
- If it works, reopen the apps one at a time and retest to identify a possible conflict.
- If the issue remains, Activision suggests a clean boot for Warzone troubleshooting. Treat it as a temporary diagnostic, follow Microsoft’s clean-boot instructions, and restore normal startup afterward.
Do not permanently disable antivirus protection as a routine fix. If security software appears to be blocking the game, check Activision’s current instructions and your security vendor’s guidance rather than leaving the PC unprotected.
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6. Use DirectX guidance only when the error points to DirectX
If the message explicitly names DirectX, follow the relevant steps in Activision’s DirectX error troubleshooting article and ensure Windows is current. That article is dated November 22, 2019, so prioritize current Windows and game-specific support directions if its steps or labels no longer match your PC. Do not apply DirectX-specific changes to an unrelated crash without an error that points to it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.7. Check TPM and Secure Boot only for titles that require them
Activision’s article dated August 27, 2026 says TPM 2.0 and Secure Boot are required for Black Ops 7 and Warzone, but not for other currently available Call of Duty titles. These are requirements for specified games, not general crash fixes. If your title shows a relevant security notification, confirm its current requirements first. Activision warns that changing UEFI or BIOS settings incorrectly can cause system problems; consult your PC or motherboard manufacturer’s documentation or a qualified technician before changing firmware settings. See Activision’s TPM 2.0 and Secure Boot guidance.
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8. Send Activision a crash log if the problem continues
Activision’s voluntary PC crash report form describes its purpose as gathering information to help investigate PC crashes. It does not create a support ticket or promise that an individual crash will be resolved. To submit a report:
- Open the affected game’s installation folder and locate CrashLogGenerator.exe.
- Run the utility and follow its prompts to generate the Error Log ZIP file.
- Upload the ZIP through Activision’s PC Crash Report form, along with the requested game, platform, timing, frequency, GPU, error-code, and reproduction details.
If you need direct assistance from an agent, use Activision’s Support Options; submitting the crash report alone does not open a support case.
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