Based on #1 ranked BitDefender antivirus technology and IObit anti-malware engine, Advanced SystemCare Ultimate 8 incorporates top anti-virus capabilities, as well as the already proven comprehensive PC tune-up ability. It provides protection against all kinds of security threats, system slowdown, freeze and crash without slowing down your system.Advanced SystemCare Ultimate 8 is compatible with other security software, and it includes all features of ASC PRO. Users who uninstall Advanced SystemCare PRO during Advanced SystemCare Ultimate 8 trial can easily revert to ASC PRO at any time.