The "Anti-Malware Driver Offline/Not Installed" status in Trend Micro Deep Security indicates the agent is unable to communicate with its local anti-malware module or the driver itself is missing/failed TrendMicro Common Causes Installation Corruption
Secure Boot Issues: On Linux or newer Windows servers, if Secure Boot is enabled and the Trend Micro public key isn't enrolled, the driver will be blocked.
Corrupted Installation: A failed or partial installation process can leave drivers in a "limbo" state.
: The agent installation may be broken, often requiring a manual cleanup of specific driver files. Secure Boot (Linux/Windows)