- Quit the Cleaner One Pro app.
On the menu bar, click Cleaner One Pro icon then select Quit.
- Move the app to Trash.
On the list of your Applications, find Cleaner One Pro then select Move to Trash.
- Delete the other files related to the application.
- Go to folder: ~/Library/containers
- Find this files and move it to trash: com.trendmicro.TrendCleaner OR com.trendmicro.TrendCleanerPro
- Empty your trash.
- Restart your computer.