The simplest way to check if you meet the Highguard system requirements is to just run the game! Systems that meet the requirements will launch into the main menu without issue. Systems that have a Secure Boot or TPM issue will see a dialog with the following error:

If you encounter this error, read the next section to learn your options for playing the game. Generally, most Windows 11 machines should be fully supported since Secure Boot and TPM 2.0 are Windows 11 OS requirements.