Enabling and disabling scan engine debug log using the registry in Apex One

Apex One2019

Last updated: 2021/09/16

Solution ID: KA-0001583

Category: Troubleshoot

When troubleshooting scanning issues, a scan engine debug (tmfilter.log) may be requested by Trend Micro Technical Support.

This article contains the steps in manually enabling and disabling scan engine debug using the Windows registry.

To enable scan engine debug:

Open the Registry Editor.

Always back up the whole registry before making any modifications. Incorrect changes to the registry can cause serious system problems.
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TMFilter\Parameters
Change the value of the "DebugLogFlags" key to "00003eff".
Replicate the issue
Once done, disable the debug mode by restoring the "DebugLogFlags" key to "0".
Locate the TMFilter.log file in your %SystemRoot% folder and send it to Trend Micro Technical Support.

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