It will automatically scan your computer every week, replacing the need for you to manually scan using Symantec Security Check. It’s quick, easy, and best of all, it’s free!
It is not a real-time software but an “on demand” application that looks for viruses, spyware and other security threats.
As most antiviruses, it scans installed software, the boot sector, the partition sector, and looks for Viruses, Trojan horses, Hack tools (tools to gain illegal access to your computer), Spyware, Adware (enables third parties unwanted advertising content) and Trackware (small programs that follows your system's activity, system information or user habits). It usually detects threats with great accuracy.