You can select the actions for the app to perform on files in which it has detected threats.
The app attempts to disinfect the detected file. If the check box is selected, the app first attempts to disinfect a file that it has detected. If the app fails to disinfect the detected file, the app performs the action specified in the If disinfection fails section.
If the check box is cleared, on detecting a file the app immediately performs the action specified in the If disinfection fails section.