Ad-Aware Antivirus Free is a software that provides real-time protection against malware, spyware, and other online threats. It includes a powerful antivirus and anti-spyware engine, as well as a behavioral analysis tool that detects and blocks suspicious activities. The software also offers web protection, email protection, and a network protection feature that monitors network activity for potential threats. Additionally, Ad-Aware Antivirus Free includes a gaming mode that suspends alerts and updates during gameplay.