Microsoft Defender Antivirus
Sign in to saveAlso known as Defender, Microsoft AntiSpyware, Windows Defender, Microsoft Defender antimalware platform
antivirus app, component of Windows Vista and later
Key facts
- Other names
- Windows Defender Windows Security
- Original author
- Microsoft
- Developer
- Microsoft
- Platform
- Platform March 2026 Update (4.18.26030.3011) / April 29, 2026 ; 42 days ago ( 2026-04-29 )
- Windows app
- February 2026 Update (102.2602.23001.0) / February 2026 ; 4 months ago ( 2026-02 )
- Ios
- 1.1.7620.0101 / April 24, 2026 ; 47 days ago ( 2026-04-24 )
- Android
- 1.1.8321.0101 / December 2, 2025 ; 6 months ago ( 2025-12-02 )
via Wikipedia infobox
Wikidata facts
- Part of
- Q107269746
- Developer
- Microsoft
Show 5 more facts
- copyright license
- freeware
- software version identifier
- Platform Version 4.18.25050.5
- inception
- 2006-10-23
- business model
- software as a service
- Commons category
- Windows Defender
Sources (6)
via Wikidata · CC0
~18 min read
Encyclopedic overview
Operating system Windows 7 SP1 or later
Windows Server 2008 R2 SP1 or later
Excerpted from Wikipedia’s “Microsoft Defender Antivirus” article, available under the CC BY-SA 4.0 licence.