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

Copy the entire agent installation directory and driver store to the offline machine (via USB, DVD, etc.).

Introduction: A Critical Alert for Virtualized Environments

For system administrators managing hybrid data centers or large-scale virtualized environments (VMware, Hyper-V, or AWS), Trend Micro Deep Security is a cornerstone of workload protection. Its "Agentless Anti-Malware" feature is particularly prized because it offloads scanning responsibilities to the hypervisor, saving memory and CPU cycles on individual virtual machines (VMs). Copy the entire agent installation directory and driver

However, a common and frustrating error message can appear in the Deep Security Manager (DSM) console or event logs:

"Anti-Malware Driver Offline – Not Installed" "Anti-Malware Driver Offline – Not Installed"

This alert typically appears with an orange or yellow warning triangle on the "Overview" or "Computer" tab. What makes this issue particularly perplexing is that it often happens offline—meaning the VM is powered on and appears functional, but the driver is either missing, corrupt, or disabled.

If you are seeing this status, your VMs are not protected against malware. This article explains exactly why this happens and provides a step-by-step guide to resolve it. This alert typically appears with an orange or

For the agent to build the driver locally, specific packages must be installed.

Before troubleshooting, it is crucial to understand the architecture.

| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Driver not listed in sc query | Feature not installed | Reinstall agent with full anti-malware package from offline installer | | Driver present but not started | Missing signature files | Copy signatures from online machine to offline system | | Agent says “Requires activation” | No DSM connection | Configure agent to communicate with DSM via static IP (offline network) | | Installation fails with error 0x8004xxxx | Corrupt offline package | Redownload and verify checksums |