"Restart Required" error message keeps showing when installing Trend Micro Security software

  • Solution ID:1104092
  • Last Updated:Nov. 29, 2019 1:42 AM (PST)
  • Applies to:Antivirus+ Security - 2018;2019;2020;Internet Security - 2018;Internet Security - 2019;Internet Security - 2020;Maximum Security - 2018;Maximum Security - 2019;Maximum Security - 2020;Premium Security - 2018;Premium Security - 2019;Premium Security - 2020;
  • Trend Micro Keeps Asking Me To Restart

You receive the following error message when upgrading your Trend Micro Security program to the latest version:

Restart Required

"Restart Required
You must restart the computer to make some system changes take effect before installing the software."

This issue happens when you have an older version of Trend Micro program on your computer.


You may get the message twice during the installation because you need to restart your computer to delete the remnants of your old Trend Micro program. You can proceed with the installation after restarting your computer.

If you get the message more than twice, follow the instructions below:

Bookmark this page

We recommend that you bookmark this page before proceeding because you will be asked to restart your computer during the procedure.

To bookmark this page, click the Star button on the right side of the address bar.

Install and run the Remnant File Remover Tool

Run the Remnant File Remover Tool to remove any leftover Trend Micro files from affected computers so that you can successfully install the latest version of your Trend Micro Security Software.

For instructions, refer to this Knowledge Base article:
Using the Trend Micro Remnant File Remover Tool

Install your Trend Micro Security

To Install your Trend Micro Security software, refer to this Knowledge Base article:
Installing the latest version of Trend Micro Security program.


Need Additional Help?

Our Support Team is ready to help you with your concerns.