This guide walks you through activating Trend Micro Security on Windows, whether you’re activating for the first time or switching to a new activation code.
Before You Begin
- Have your Activation Code ready: You’ll enter it during activation. If you can’t find it, use this guide to locate your activation code.
- Your Trend Micro Account: You’ll sign in or create one during activation.
- Windows version: Trend Micro Security supports Windows 10 (version 22H2) and Windows 11 (including ARM‑based) or later.
- Stable internet connection
Get Started: Pick Your Situation
- I’m activating for the first time
- I already installed the app and need to activate
- I’m switching to a new activation code
- I want to renew my subscription
- I want to get Trend Micro ScamCheck
- Troubleshooting (Quick Fixes)
- Frequently Asked Questions (FAQ)
Method 1 — First‑Time Activation (New Subscription/License)
- Open the Trend Micro Activation Portal and click Get Started.
- Create or sign in to your Trend Micro Account using your email or phone number.
- For new account, complete your profile then click Next.
- For existing account, click Next to proceed.
- Enter your Activation Code, accept the License Agreement, then click Next.
- Fill out the details for auto-renew enrollment as part of the activation process.
- After successful activation, you’ll be redirected to your Downloads page to install the apps you purchased.
- Once installed, open the Trend Micro app, and you will see a Protected message along with your subscription’s expiry date.
NOTE: You won’t be charged for the auto-renewal enrollment.
Method 2 — Activate Inside the Trend Micro App (Already Installed)
If Trend Micro Security is already installed on your device but not yet activated, or you need to change your activation code. Follow the steps below:
- Open Trend Micro on your PC and click the expiry date shown at the bottom right corner of the main window.
- In Subscription Information window, select Change your Activation Code.
- Enter the new activation code and follow the prompts. The app will refresh your license details when done.
License Not Showing After Activation?
If you've entered your activation code but don't see your license reflected in the app, try these steps:
- Check your account: Your license is tied to whichever TrendLife Account you signed in with. Make sure it's the same one you used at purchase.
- Give it a moment: It can take a few minutes for the app to sync after activation. Close and reopen Trend Micro app to refresh.
- Confirm the activation code hasn't already been used: If your activation code was entered on another device or account, it won't apply again. See Where to Find Your Trend Micro Activation Code to double-check.
🔔 Still not showing up? Contact Trend Micro Support and we'll take a closer look at your account.
I Need to Renew My Subscription
If your subscription is expired, you can renew it using your activation code. To do so:
Get Trend Micro ScamCheck
Trend Micro ScamCheck is a mobile app that protects you from scams, deepfakes, unwanted calls, and spam messages. It uses advanced features to keep you safe from online threats on both Android and iOS devices.
Scan the QR code to download the app and start protecting yourself today!