Trend Micro Deep Security Anti-malware Driver Offline Not Installed Link
After a Microsoft Patch Tuesday, a Windows kernel update may change the filter manager structure. If the Trend Micro driver ( tmebc.sys , tmcomm.sys ) was compiled for an older kernel version, it will fail to load. The agent shows as "online," but the anti-malware driver remains offline.
After installing the anti-malware driver offline, verify its status by following these steps: After a Microsoft Patch Tuesday, a Windows kernel
Check for .sys files in drivers subfolder. After a Microsoft Patch Tuesday
Appendix — quick checklist for fast triage After a Microsoft Patch Tuesday, a Windows kernel