- Home
- Antivirus software
- Microsoft Defender Antivirus
On the recordRead 20 Sep 20268 facts
Microsoft Defender Antivirus
Microsoft Defender Antivirus · Redmond, Washington, USA · founded 1975
Plans and prices
Microsoft Defender Antivirus built into Windows
Priced on request
Real-time, always-on antivirus protection · Virus and malware protection · Windows Security integration
Read 20 Sep 2026 · microsoft.com
Microsoft 365 Personal
Priced on request
1 person · Up to 5 devices simultaneously · 1 TB cloud storage
Read 20 Sep 2026 · microsoft.com
Microsoft 365 Family
Priced 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 Premium
Priced on request
1 to 6 people · Up to 5 devices per person · Up to 6 TB cloud storage
Read 20 Sep 2026 · microsoft.com
On the record
- Parental controls
- Nomicrosoft.com · read 20 Sep 2026
- Password manager
- Nomicrosoft.com · read 20 Sep 2026
- Protection scope
- antivirusmicrosoft.com · read 20 Sep 2026
- Ransomware protection
- Yesmicrosoft.com · read 20 Sep 2026
- Supported platforms
- Windows 10,Windows 11microsoft.com · read 20 Sep 2026
Alternatives to Microsoft Defender Antivirus
Kaspersky AntivirusAndroidiPhone & iPad+5Bitdefender Total SecurityAndroidiPhone & iPad+2Avast OneAndroidiPhone & iPad+3Microsoft Defender for BusinessAndroidiPhone & iPad+3FortiClientAndroidiPhone & iPad+3Bitdefender Antivirus PlusAndroidiPhone & iPad+2F-Secure TotalAndroidiPhone & iPad+2ESET HOME SecurityAndroidiPhone & iPad+2