Quick Answer: What Does Windows Defender Do?

Windows Defender Antivirus.

Keep your PC safe with trusted antivirus protection built-in to Windows 10.

Windows Defender Antivirus delivers comprehensive, ongoing and real-time protection against software threats like viruses, malware and spyware across email, apps, the cloud and the web.

Is Windows Defender a good antivirus?

Microsoft’s Windows Defender isn’t great. In terms of protection, you can argue that it’s not even that good. Still, at least as far as its overall standing is concerned, it’s improving. As Microsoft improves Windows Defender, so must the third-party antivirus software keep pace—or risk falling by the wayside.

Is Windows Defender enough protection?

That technically gives it the same “Protection” and “Performance” ratings as antivirus giants like Avast, Avira and AVG. In real terms, according to AV Test, Windows Defender currently offers 99.6% protection against zero-day malware attacks.