Microsoft Defender Antivirus

Always Free

You might be paying for: Norton ($80–$120/year), McAfee ($90–$120/year)

Real-time malware protection built into your computer — for no monthly fee.

What you get

What's different from the paid version

Independent testing labs now rank Microsoft Defender alongside paid antivirus products. It's no longer the weak default it was a decade ago. Most cybersecurity professionals say you don't need third-party antivirus anymore.

Perfect for

Every Windows user. Stop paying for Norton.

Learn about Windows Security
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