When you accidentally download a virus, the first step the malicious program takes is typically to attempt to disable or bypass your antivirus application, a situation the self-defense module from ESET NOD32 Antivirus helps prevent. While the self-defense module is a critical component of ESET NOD32 Antivirus that should normally stay enabled, there are cases where you may want to disable this feature due to compatibility or performance issues. You can do so by editing the program's advanced setup settings.
Double-click on the ESET NOD32 Antivirus icon on your taskbar to open the program and select "Tools" from the left-hand pane.
Click on the "Enter Advanced Setup" link to open a new window that contains a list of advanced settings.
Click on the "+" sign next to Computer and select "HIPS." Uncheck the box next to "Enable Self-defense."
Click on the "OK" button in the warning box to proceed.
Select "OK" to confirm your new ESET NOD32 Antivirus settings. Restart your computer to finish disabling the self-defense feature.