Kaspersky tends to leave "corpses" of malwares, especially *.exe files and fake shortcuts, even though those files are absolutely harmless but those files will still be detected by some antiviruses (false positives). You can change the setting from Disinfect into Delete to get rid of those "corpses", KIS always makes backup of anything it deletes.
If KIS signature scans, in rare ocassions, cant clean all [dormant] threats, KIS Real Time & Apps Control & Proactive Def & Identity Protection will eliminate all [active] threats the second they are executed, even before they are executed. We are in the era of behavioral security, signatures are legacy.
And if somehow some threats miraculously get passed all those KIS features, System Watcher will roll back all changes the threat made to the system, and if your identity data or passwords got stolen and sent over to the internet again via slipping through the most advanced Kaspersky firewall, have no worries, since it has been highly encrypted by Kaspersky. All they get is scrambled passwords in alien language. imho.