Highguard can refuse to launch when Secure Boot or TPM 2.0 is not active on your PC. This usually appears as a Secure Boot, TPM, or machine integrity error. The issue is tied to Highguard’s PC security requirements. The official Highguard help page says players may need BIOS changes, firmware updates, or supported hardware to enable Secure Boot and TPM 2.0. Quick Answer To fix Highguard’s Secure...

