What is the primary function of the Windows Firewall?

The primary function of the Windows Firewall is to protect computers from unauthorized network connections. It acts as a security barrier between your computer and the network, controlling incoming and outgoing traffic based on predefined security rules. This capability allows the firewall to prevent unauthorized access to your system from external sources, helping to safeguard sensitive data and maintain system integrity.

The firewall examines data packets entering or leaving the network and can block or allow traffic based on the rules set by the user or the default Windows Firewall settings. Its ability to manage connections helps to mitigate threats from hackers or malicious software attempting to exploit vulnerabilities in a network.

While other options, like protecting against email viruses, phishing scams, and unencrypted network access, are important aspects of overall computer security, they are typically handled by different types of security solutions such as antivirus software or secure web browsers. The specific function of managing network connections is what distinguishes the Windows Firewall's primary role in system security.