Windows Defender – Built-in Antivirus & Security Protection for Windows

Windows Defender — Built-in Antivirus & Security Protection

Windows Defender, now branded as Microsoft Defender Antivirus, is the default security solution built into Windows. It offers real-time protection against viruses, malware, ransomware, spyware, and other online threats.

What is Windows Defender?

Windows Defender is an integrated antivirus and endpoint protection tool that runs automatically on Windows systems. It uses cloud-based intelligence and frequent updates to protect users without needing third-party antivirus software.

Why Choose Windows Defender?

• Built-in & Free: No extra installation or cost
• Real-Time Protection: Continuous threat monitoring
• Ransomware Protection: Controlled folder access
• Phishing Protection: SmartScreen integration
• Low System Impact: Optimized for Windows
• Automatic Updates: Always up to date

Key Features of Windows Defender

1. Real-Time Antivirus Protection

Detects and blocks malware instantly.

2. Ransomware & Exploit Protection

Prevents unauthorized file changes.

3. Firewall & Network Security

Monitors inbound and outbound traffic.

4. Cloud-Based Threat Intelligence

Uses Microsoft security data worldwide.

How to Use Windows Defender

1. Open Windows Security from Settings
2. Check Virus & threat protection status
3. Run quick or full system scans
4. Enable ransomware protection
5. Keep Windows Update enabled

Windows Defender Pricing

• Free: Included with Windows 10 & 11

Who Should Use Windows Defender?

• Windows Users: Built-in security solution
• Home Users: Everyday malware protection
• Students: Free and reliable antivirus
• Office Users: Basic endpoint security
• Budget Users: No paid antivirus needed

Conclusion

Windows Defender is one of the most reliable free antivirus solutions in 2026. If you use Windows 10 or 11 and want strong, built-in protection without extra software, Windows Defender is more than sufficient.

👉 Learn More: https://www.microsoft.com/windows/security

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