EntityQ51707· pop 37· linked from 106 articlesMicrosoft Security EssentialsSign in to savefree antivirus product produced by Microsoft for the Windows operating systemConnectionssoftware release life cycleEntityantivirus softwareEntityMicrosoft Defender AntivirusEntityrootkitEntityGen DigitalEntityAvast SoftwareEntityZDNETEntityrogue security softwareEntityMicrosoft ForefrontEntityComodo Internet SecurityEntityInternational Data CorporationEntityVba32 AntiVirusEntityoperating systemEntityMicrosoft WindowsEntityMicrosoftEntityBBCConcepthard diskEntityGoogle ChromeConceptAnaheimEntitycomputer virusEntityCategories2009 softwareAntivirus softwareMicrosoft softwareProducts and services discontinued in 2023Windows-only freewareWindows security software