PC security requirements and support routes

Requirements

Online access

Activision requires TPM 2.0 and Secure Boot for MW4 online modes. Windows 11 alone is not proof that attestation will pass.

Firmware context

Secure Boot depends on UEFI and GPT configuration. CPU/firmware compatibility and a discrete TPM can affect support; check the motherboard’s documentation.

Check status

The official guide uses Windows System Information (msinfo32) for UEFI/Secure Boot state and tpm.msc for TPM version and manufacturer details. This website does not inspect or change those settings.

If the game rejects attestation

Official diagnostic

Use Activision’s current Secure Attestation Wizard and hardware-vendor guidance. A TPM version match alone does not certify the full machine.

Repeated firmware prompt

The support page identifies particular AMD/Intel firmware cases requiring manufacturer review. Follow its current checks; no blanket BIOS update is prescribed here.

TCG event-log message

Activision links this failure to restarting and applying Windows updates. Follow the linked case guidance rather than disabling security controls.

UAC prompts

The support article documents CODBrokerInstaller.exe and enrollaik.exe during registration. A filename alone cannot authenticate a prompt; review the official explanation and your own installer context.

• Official TPM and Secure Boot guide

Before firmware changes

Use your PC or motherboard manufacturer’s instructions for your exact model. Activision cautions that incorrect UEFI/BIOS changes can cause system problems; this reference provides no automated firmware, partition or security-setting changes.