Password Manager will be discontinued by November 16, 2025. Switch now to Trend Micro ID Protection↗ to continue managing your passwords securely.

You can activate your new Trend Micro Maximum Security license without uninstalling the program.
To update your serial number:
Open Trend Micro Maximum Security.
Click the expiration date located at the lower-right corner.
Select Change your activation code, enter your new serial number, and click Apply to activate your license.
Hello,
You’re correct. The issue could indeed be caused by conflicts between Web Guard VPN and other network configurations or VPN apps. We recommend checking that no other VPNs or security profiles are active on the device, as having multiple VPNs running simultaneously can cause network interruptions or dropped connections.
please follow the steps below:
1. Use the search bar near the Microsoft icon.
2. Search for "Trend Micro Diagnostic Tool Kit."
3. Open the tool and tap "C. Uninstall."
4. Tap "Stop All Components."
5. Tap "Uninstall Software."
6. Wait to ask you restart your computer, then click "Restart now".
To reinstall Trend Micro Maximum Security, follow these steps:
1. Go to this link: Quick Help | Trend Micro Help Center
2. Scroll down and tap "Download Maximum Security" to download the installer.
3. Open the installer once it is downloaded.
4. Tap "Accept and Continue," then enter the Activation Code.
5. Wait for the installation process to complete.
To add website on your exception list:
1. Open your Trend Micro Maximum Security
2. Click Settings
3. Click "Exception Lists"
4. Click "Add" to add your website on the list