Download [new] Trend Micro Diagnostic Toolkit -

Open your preferred web browser (preferably Microsoft Edge or Chrome in safe mode if your PC is highly unstable). Go to the official Trend Micro website.

If supporttool.exe doesn't work, your installation may be severely corrupted. In these rare cases, you can download a standalone version of the or the Uninstall Tool directly from the Trend Micro Download Center. download trend micro diagnostic toolkit

There are two primary ways to acquire this tool. The method you choose depends on whether you have a specific support ticket or are performing self-troubleshooting. Open your preferred web browser (preferably Microsoft Edge

In the search bar on the Help Center page, type the exact phrase: . In these rare cases, you can download a

Right-click the downloaded TMDiagnosticTool.exe file and select . User Account Control (UAC) will pop up—click Yes .

The will open, typically defaulting to the (A) General or (C) Uninstall tab. When Should You Use It?

Remember the golden rule: Avoid third-party mirrors at all costs. With the correct download and proper usage, you will restore your antivirus protection quickly and safely.