Having third-party security software or older Trend Micro programs installed on your computer may lead to installation and performance issues. To remove these programs and their components, follow the steps below:

1. On your keyboard, press the Windows + R keys to open the Run command.
2. On the Open, type "appwiz.cpl", then press ENTER. The Programs and Features window should open.
3. Select the program you wish to remove, then click Remove or Uninstall.
4. Wait for the program to be uninstalled, then restart your computer when asked.
5. Try updating your Trend Micro Security program again.

1. Open the Trend Micro Diagnostic Toolkit by doing the following:
1. On your keyboard, press the Windows + R keys to open the Run command.
2. Type "supporttool.exe" on the Open field, then click OK.

   

2. Click (C) Uninstall tab.
3. Click 2. Delete Now. This will delete the security update files from your computer.

   

4. Click Close.
5. Try updating your Trend Micro Security program again.

To reinstall your program, refer to this Knowledge Base article:
How to reinstall the latest version of Trend Micro Security program.