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

: Ensure the server has the latest Microsoft root certificate updates. In some cases, conflicting third-party certificates (like Comodo) must be cleared and reinstalled to allow the Trend Micro drivers to initialize properly. 3. Secure Boot and Kernel Compatibility (Linux)

On Linux systems, the Anti-Malware driver (VFS_Filter) may fail if the kernel is unsupported or if Secure Boot is blocking the module.

: Perform a manual uninstallation. Go to Device Manager , enable "Show hidden devices," and under Non-Plug and Play Drivers , uninstall tmactmon , tmcomm , and tmevtmgr . Reboot the machine before attempting a fresh installation of the latest agent version. 2. Certificate and Digital Signature Issues : Ensure the server has the latest Microsoft

Before performing a full reinstallation, try these quick fixes:

: Open a command prompt as an administrator and run sc query AMSP , sc query tmcomm , sc query tmactmon , and sc query tmevtmgr . If any are stopped, attempt to start them manually. Secure Boot and Kernel Compatibility (Linux) On Linux

Anti-Malware: Driver offline / Not installed - Deep Security

Outdated root certificates on Windows servers can prevent the system from verifying the digital signatures of Trend Micro drivers. Reboot the machine before attempting a fresh installation

When the Trend Micro Deep Security Notifier displays "," it typically signals a corrupted installation or a critical driver failing to load on the endpoint. This error prevents the Anti-Malware module from protecting the system, even if the main Deep Security Agent (DSA) appears active in the management console. Immediate Troubleshooting Steps