Microsoft Defender Antivirus pricing
8 plans read from microsoft.com
Microsoft Defender Antivirus built into WindowsPrice not published Real-time, always-on antivirus protection · Virus and malware protection · Windows Security integration Read 20 Sep 2026 · microsoft.com
Microsoft Defender Antivirus built into WindowsPriced on request Real-time, always-on antivirus protection · Virus and malware protection · Windows Security integration Read 20 Sep 2026 · microsoft.com
Microsoft 365 PersonalPriced on request 1 person · Up to 5 devices simultaneously · 1 TB cloud storage Read 20 Sep 2026 · microsoft.com
Microsoft 365 PersonalPrice not published 1 person · Up to 5 devices simultaneously · 1 TB cloud storage Read 20 Sep 2026 · microsoft.com
Microsoft 365 FamilyPrice not published 1 to 6 people · Up to 5 devices per person · Up to 6 TB cloud storage Read 20 Sep 2026 · microsoft.com
Microsoft 365 FamilyPriced on request 1 to 6 people · Up to 5 devices per person · Up to 6 TB cloud storage Read 20 Sep 2026 · microsoft.com
Microsoft 365 PremiumPrice not published 1 to 6 people · Up to 5 devices per person · Up to 6 TB cloud storage Read 20 Sep 2026 · microsoft.com
Microsoft 365 PremiumPriced on request 1 to 6 people · Up to 5 devices per person · Up to 6 TB cloud storage Read 20 Sep 2026 · microsoft.com
In short
- Microsoft Defender Antivirus has a free plan (Microsoft Defender Antivirus built into Windows).
- 4 plans are priced on request (Microsoft Defender Antivirus built into Windows, Microsoft 365 Personal, Microsoft 365 Family, Microsoft 365 Premium).
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| Bitdefender Total Security | $5/mo | Yes | Yes |
| Avast One | — | Yes | Yes |
| Kaspersky Antivirus | $3.25/mo | No | Yes |
| Avast Premium Security | $4.17/mo | No | Yes |
| Bitdefender Antivirus Plus | $2.08/mo | No | Yes |
| F-Secure Total | $5.83/mo | No | Yes |
| F-Secure Internet Security | — | No | Yes |
| Emsisoft Business Security | $1.10/mo | No | Yes |