sry for the bad english, today i got a adware in my computer, i cant search any keyword like "adw" or "adwcleaner", i use Avast to scan like 4 hours+, 0 threat detect. And i try Malwarebytes scan like 2 minit, 60+threat detect and all the threat have been quarantined. Can anyone explain why Avast cant find a single threat?