Trend Micro Deep Security Anti-malware Driver Offline Not Installed [2026]

Follow these troubleshooting steps in order, moving to the next only if the previous step fails.

The most common cause is a pending restart. The DSA agent requires a reboot to lock the drivers into the kernel. Even if the installer didn't ask for it, 2. Verify Agent Status via CLI

Install the latest compatible agent version for your operating system, then run the activation command or trigger activation directly from the DSM console. Long-Term Prevention Strategies Follow these troubleshooting steps in order, moving to

user wants a long article about the Trend Micro Deep Security anti-malware driver offline not installed issue. I need to cover causes, solutions, error codes, manual installation, logs, and best practices. I'll search for relevant information. search results provide several relevant links. I'll open them to gather detailed information. user wants a long article. The search results provide a wealth of information. I will structure the article with an introduction, sections on causes, troubleshooting steps, and best practices. I'll cite the relevant sources. "Anti-Malware Driver Offline" or "Anti-Malware Driver Not Installed" alert is a common yet serious issue faced by administrators using Trend Micro Deep Security. It typically signals that the core protection driver on a protected server is either missing, not loaded, or has failed a critical verification check, leaving the endpoint vulnerable to threats. This guide provides a comprehensive look at the causes of this error and a structured, step-by-step approach to resolving it.

Open regedit and navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tmcomm Even if the installer didn't ask for it, 2

I can provide specific commands and paths tailored to your exact deployment. Share public link

If the Linux host is a virtual machine or bare-metal server with Secure Boot enabled, the kernel will refuse to load the ds_am module because it is not signed by a key in the system's shim database. Check if the module failed to load due to verification: sudo dmesg | grep -i ds_am Use code with caution. I need to cover causes, solutions, error codes,

Run lsmod | grep tm or modprobe -l | grep trend . If no modules listed, reload with: