Avast antivirus free download to protect Pcs from malware and ransomware on Microsoft Windows, macOS, Android, and iOS. It is an internet security software developed by Avast to protect Pcs from malware and ransomware on Microsoft Windows, macOS, Android, and iOS. It has the ability to detect and scan a number of viruses and can track modifications done by many types of malware. ad Along with that, it can easily be integrated into your system, offering you real-time protection services. It comes with two types of interfaces: a simple one for non-professional users, and an advanced one for more knowledgeable users. It also provides a resident scanning tool that on activating, stays minimized as an icon in the toolbar. Every time when you open a file or an application, Avast antivirus free download will check for possible threats. The resident protection system includes three blocks: System Files Shield, Web Shield, and Mail Shield. Th...