iolo antivirus provides protection through a set of tools that detect, remove, and block malware in real time. The main security components are Malware Killer and System Shield. They are also included inside System Mechanic Pro and System Mechanic Ultimate Defense.
Malware Killer
Malware Killer focuses on finding and removing active threats. It hunts down new and hidden malware, including zero day attacks, and uses cloud assisted analysis to identify suspicious behavior. Its job is to clean infections fast.
System Shield
System Shield provides the always on protection. It blocks viruses, spyware, and other threats before they can execute. It runs quietly in the background, uses real time monitoring, and helps keep the system protected over time.
Key difference
Malware Killer removes existing infections. System Shield prevents new ones. When used together, they cover both sides of protection: cleanup and ongoing defense.
iolo Antivirus Protection
Together, these tools create a balanced defense that handles both prevention and cleanup. This gives users a steady layer of protection against evolving threats and keeps everyday performance steady. With iolo antivirus in place, your system stays guarded without getting in the way of your work.


