🌐فارسیEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیहिन्दीไทย한국어中文日本語EntityQ51707· pop 37· linked from 106 articlesمایکروسافت سکیوریتی اسنشالزAlso known as MSEfree antivirus product produced by Microsoft for the Windows operating systemKey factsDeveloperMicrosoftInitial release29 September 2009 ( 2009-09-29 )Final release4.10.209.0 / 30 November 2016 ; 9 years ago ( 2016-11-30 )Operating systemWindows Vista SP1 or SP2 and Windows 7PlatformIA-32 and x64SizeIA-32: 11.7 MB x64: 14.4 MBAvailable in33 languagesTypeAntivirus softwareLicenseFreewareWebsitesupport .microsoft .com /en-my /help /17150 /windows-7-what-is-microsoft-security-essentialsvia Wikipedia infoboxWikidata factsOfficial websiteAvailable in 36 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةहिन्दीConnectionssoftware release life cycleEntityantivirus softwareEntityCategories2009 softwareAntivirus softwareMicrosoft softwareProducts and services discontinued in 2023Windows-only freewareWindows security software