Avast Free Antivirus provides the essential security you need to protect your PC from hackers and thieves. In addition to the best antivirus and anti-malware protection possible, the new Home-Network Scanner scans your network for any issues, while Browser Cleanup lets you remove annoying plugins, and SmartScan allows for one-click scanning. For the first time ever, you can protect your home network devices, such as routers and wireless devices, from hacker attacks. Protect your Windows with the best free antivirus on the market today.