Protecting your Windows PC requires more than traditional antivirus software. Next-generation antivirus (NGAV) solutions use advanced technologies such as artificial intelligence, machine learning, behavioral analysis, and real-time threat detection to identify and stop both known and emerging cyber threats. This guide explains how next-generation antivirus works, the key features to look for, and best practices for keeping your Windows devices secure. Whether you're safeguarding a personal computer, a home office, or multiple business systems, understanding modern antivirus protection can help reduce the risk of malware, ransomware, phishing attacks, and other online threats. With the right knowledge and security practices, you can improve your device's performance, protect sensitive information, and maintain a safer Windows experience.