Which of the following is the most effective way to minimize the risk of viruses?

Using anti-virus software is the most effective way to minimize the risk of viruses because it actively scans, detects, and removes malicious software from a system. Anti-virus programs are specifically designed to recognize known threats and can provide real-time protection by monitoring files and processes for suspicious activity. They help prevent infections by alerting users to harmful downloads, identifying infected files, and offering quarantine options for further action.

While updating the operating system and disabling all internet connections can enhance security, these practices do not actively combat viruses. Many infections can occur through local media or from infected files already present on a computer, which anti-virus software can address. Avoiding email can reduce risk but is not practical or effective since many legitimate communications happen through email, and modern viruses can spread through various means beyond email itself. Thus, relying on dedicated anti-virus software is the most comprehensive approach to protecting against infections.