Which of the following is not a best practice for virus scanner configuration?

The best practice for virus scanner configuration involves maintaining a robust system that ensures ongoing protection without introducing unnecessary complexities. The option suggesting monthly removal and re-installation of the virus scanner is not considered a best practice because it can lead to operational inefficiencies and disruptions in security. Traditional antivirus software is designed for continuous operation, and frequent re-installation can introduce vulnerabilities, especially if the system is not adequately secured during the re-installation process. Additionally, this approach does not provide a practical solution for detecting or preventing malware, as it creates a lapse in protection each time the scanner is removed.

In contrast, regularly scheduled automatic updates, frequent complete scans, and real-time scanning of programs as they execute are all recognized as essential practices. Automatic updates ensure that the virus definitions are current, enabling the scanner to combat the latest threats, while complete scans provide a thorough check for any existing malware within the system. Real-time scanning helps catch potential threats as they occur, preventing infections from executing and spreading. Together, these practices establish a comprehensive defense strategy against malware, making option B the least aligned with recognized best practices.