Avast Antivirus is Cloud-light, award-winning virus protection software packed with the largest threat-detection network, machine-learning virus protection, easy password management and home network security that won’t slow down your PC. It's an intelligent Antivirus which detects and blocks viruses, malware, spyware, ransomware and phishing. It uses smart analytics to stop threats before they affect you. With it's CyberCapture technology, it automatically sends suspicious files for analysis in the cloud, and push a cure to all Avast users if it's a threat. It's Smart Scan can find all those cracks which allow malware to slip in, from unsafe settings and passwords to suspicious add-ons and out-of-date software. It's easy to install, effortless to use. So relax: With Avast, you’re running the most trusted antivirus out there.
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Note: A licensed version provides more features, and in order to get your hands on those features buy a license to support the software developer.