If you are trying to play Modern Warfare 4 but can't get it to work on any devices because of “Attestation Required r, your PC does not meet the security requirements, and you may need to enable Secure Boot, TPM 2.0, or both." This article will show you how to solve the problem. Unfortunately, you may be limited by your hardware, so don't get your hopes up just yet. You might not be able to fix this problem on your device.

Takeaways:

  1. Can you play COD Modern Warfare without TPM 2.0?
  2. Is it possible to get around the Modern Warfare TPM 2.0 problem?

What is Causing the “Attestation Required” Error in Modern Warfare 4

Call of Duty uses security features including TPM 2.0 and Secure Boot to verify that your PC meets its security requirements. If one or both are disabled, you will see the “Attestation Required” message and be unable to play multiplayer. In some cases, you will still be able to play the campaign.

IMPORTANT: If your hardware doesn't support TPM 2.0 and Secure Boot, you won't be able to play the game. There's no workaround for this.

How to Fix Attestation Required (Secure Boot & TPM) Modern Warfare 4

To make the changes required for this, you will need to access the BIOS. The process is a little different on different devices, but the traditional method is to restart your PC and repeatedly press Delete, F2, F10, or F12.

Alternatively, you can try the following:

  • Open the Start menu and search for Command Prompt.
  • Right-click Command Prompt and select Run as administrator.
  • Enter this command: shutdown /fw /r
  • Press Enter.

Enable Secure Boot and TPM

The exact menus are quite different between manufacturers. Look for the settings mentioned below and enable the features your Call of Duty warning says are missing. We've tried to list them as accurately as possible below, but you are probably better off finding a YouTube video (a recent one) and watching that.

Gigabyte AORUS

  • Enter Advanced Mode.
  • Open the Boot section.
  • Find CSM Support and set it to Disabled.
  • Find Secure Boot and set it to Enabled.
  • Select Save & Exit and save your changes.

Your PC should restart with Secure Boot enabled.

Lenovo Legion

  • Open the Security section.
  • Select Secure Boot and set it to Enabled.
  • Open the Boot section.
  • Make sure Boot Mode is set to UEFI.
  • Exit and save your changes.

MSI

  • Switch to Advanced Mode.
  • Go to Settings > Security > Trusted Computing.
  • Enable Security Device Support.
  • Make sure the TPM device is not disabled.
  • Go to Settings > Boot and make sure UEFI mode is being used.
  • If necessary, open Settings > Advanced > Windows OS Configuration and select the Windows UEFI or WHQL option.
  • Open Secure Boot and enable it.
  • Save your changes and restart.

Dell

  • Open the Security section.
  • Find the TPM 2.0 settings and enable TPM.
  • Open Secure Boot.
  • Enable Secure Boot.
  • Save your changes and restart.

ASUS TUF

  • Switch to Advanced Mode.
  • Go to Boot > CSM.
  • Set Launch CSM to Disabled.
  • Return to the Boot menu and open Secure Boot.
  • Set the operating system type to Windows UEFI.
  • Save the changes and restart.

ROG Ally

On the ASUS ROG Ally, restart the device while holding the appropriate volume button to enter the UEFI menu.

  • Open Advanced Mode.
  • Go to Security.
  • Open Secure Boot.
  • Set Secure Boot to Enabled.
  • Save your changes and restart.

Update Windows and Your Graphics Driver

Once TPM and Secure Boot are enabled, make sure Windows is fully updated. This is especially important on Windows 10, where Call of Duty can have specific version requirements. It's also worth clean-installing your Graphics drivers as well.

  • Download Display Driver Uninstaller (DDU).
  • Download the latest stable GPU drivers from:
  • Disconnect your PC from the internet.
  • Run DDU and completely remove your graphics drivers.
  • Restart your system.
  • Install the latest GPU driver.
  • Restart again and reconnect to the internet.