Before installing Dr.Web:
•Remove any anti-virus software from your computer to prevent possible incompatibility of resident Dr.Web components.
•In Windows Server 2016, disable Windows Defender manually, using group policies.
•Install all critical updates recommended by the operating system developer. If the operating system is no longer supported, then upgrade to a newer operating system.
•in case of installation of Dr.Web Firewall, uninstall all other firewalls from your computer.
Dr.Web is not compatible with proactive security products developed by other manufacturers.