smart security 9 -- reset all settings to default

[shmu26 0]

how do I return all changes I made to the default, out-of-the-box settings for all categories?

[Marcos 5,741]

Just click the Default button and confirm the action. You can uninstall ESET and install it from scratch if you want to be sure that all values are set to defaults and that possible custom rules (firewall, HIPS, etc.) have been removed.