Call of Duty: Modern Warfare 4 ‘s modes, barring the Campaign requires you to connect to the servers, and to do so, you’ll need to prevent Attestation Failure. If you get this failure, you can’t participate in Multiplayer and DMZ. Having the New Key Failed to Generate error automatically means that your device isn’t qualified for the online modes.

Thankfully, you can solve the problem quite easily.

Table of contents

How to solve the New Key Failed to Generate Error in Modern Warfare 4 Enable Secure Boot

Updating the BIOS

Removing New Key Failed to Generate Error

How to solve the New Key Failed to Generate Error in Modern Warfare 4

Before we can solve this problem, we have to ensure two important things:

The secure boot on your PC must be turned on. Otherwise, this error will automatically pop up.

You need to enable TPM 2.0 to ensure that you do not get this error.…