Antivirus software is essential for safe internet browsing.

Symantec Endpoint Protection is installed as the primary defense; it handles its tasks adequately, though it occasionally lets something malicious slip through without alerting me:cool:
From time to time, I run an alternative check using the free Dr.Web Cureit program, which is available on the official website. Additionally, the second line of defense consists of Spybot - Search & Destroy (which protects the system from spyware) and the Anti AutoRun program, which protects the system from viruses that use Autorun files (it checks flash drives for various malicious elements).