: The diagnostic toolkit will likely guide you through a series of steps or offer options to diagnose specific issues. Follow the on-screen instructions.
If the toolkit is missing or you were instructed to download a specific version for troubleshooting, use these official methods: Access on Windows (Pre-installed): Windows key + R on your keyboard to open the "Run" window. supporttool.exe Confirm the User Account Control (UAC) prompt to open the Trend Micro Diagnostic Toolkit Access on Mac (Pre-installed): Spotlight Search (Cmd + Space) and type "Trend Micro Diagnostic Toolkit". Select it to open the application. Download Official Standalone Tools: If a support agent directed you to a specific tool like the Case Diagnostic Tool (CDT) Anti-Threat Toolkit (ATTK) , only download them from the official Trend Micro Download Center Trend Micro Help Center Review: What the Toolkit Does Users and experts from Trend Micro Support generally use the toolkit for the following tasks: Debugging: download trend micro diagnostic toolkit verified
Once the file is on your computer, verify its authenticity before running it: : The diagnostic toolkit will likely guide you
Because this tool is often hosted on official support pages rather than a main "Downloads" tab, finding the correct, verified version can be tricky. This guide covers exactly what the toolkit is, where to find the verified download, and how to ensure the file is safe to use. supporttool