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To choose the best antivirus software, consider threat detection rates, system impact, features, usability, and independent lab testing. Look for software that consistently receives high ratings from reputable security organizations and that balances security with performance.
Here's a more detailed breakdown of factors to consider:
1. Threat Detection and Protection:
Malware Detection Rates:
Look for antivirus software with high malware detection rates, meaning it accurately identifies and removes various types of malware, including viruses, worms, trojans, and ransomware.
Real-time Protection:
Ensure the software offers real-time protection, which means it scans files and web traffic in real-time to prevent infections.
Additional Security Features:
Consider additional features like web protection, firewall, and parental controls, depending on your needs.
Independent Lab Testing:
Check for independent lab testing results from organizations like AV-TEST, AV-Comparatives, and Virus Bulletin to see how different antivirus products perform against real-world threats.
2. System Impact and Performance:
Low System Resource Usage:
Choose software that doesn't significantly impact your computer's performance, causing slowdowns or crashes.
Compatibility:
Ensure the antivirus software is compatible with your operating system (Windows, macOS, Linux) and devices.
Usability:
A user-friendly interface and easy setup are important for ease of use and management.
3. Features and Functionality:
Comprehensive Protection: The software should protect all computer domains, file types, and network elements.
Antivirus, Anti-malware, and Anti-spyware: Ensure the software offers protection against all types of malware.
Web Protection: Look for features that block malicious websites and phishing attempts.
Firewall: A reliable firewall is essential for blocking unauthorized access to your computer.
Privacy Features: Consider privacy features like webcam and microphone protection.
Password Manager: Some antivirus suites include password managers for secure storage and management of passwords.
VPN: Some antivirus software also includes a VPN for enhanced privacy and security.
4. Cost and Support:
Free vs. Paid:
Determine if you need a free or paid antivirus solution, depending on your needs and budget.
Free trials:
Many antivirus providers offer free trials to test the software before committing to a subscription.
Customer Support:
Look for antivirus providers with good customer support in case you encounter any issues.
5. Privacy and Security:
Data Privacy Policy:
Review the antivirus provider's data privacy policy to understand how your personal information is handled.
Security of your data:
Ensure the software protects your data, digital identity, and financial transactions.

Here are few articles

PC MAG

tom's guide

CNET

The built-in antivirus for Windows is called Microsoft Defender Antivirus (formerly Windows Defender), and it's designed to protect your device from malware, viruses, and other threats ( included with Windows 10, Windows 11, and certain versions of Windows Server. )
While Windows Defender provides decent built-in protection, it generally lags behind dedicated, third-party antivirus solutions in terms of features, threat detection, and overall security, though it's a solid choice for basic protection and resource-conscious users.