Microsoft Security Essentials haishande paWindows 8 uye gare gare, iyo ine yayo chengetedzo subsystem, Windows Defender. Musi waGunyana 13, 2011, pamusangano wekuvaka muAnaheim, California, Microsoft yakafumura muongororwo wekuvandudza weWindows 8, iyo yaive nechikamu chekuchengetedza chinokwanisa kudzivirira hutachiona USB flash memory kubva mukukanganisa iyo system panguva yekuvhura. Musi waGunyana 15, Windows 8 mugadziri weblog akasimbisa kuti Windows Defender muWindows 8 yaizotora basa rekudzivirira hutachiona. Muvhidhiyo inosanganisirwa, Jason Garms weMicrosoft akaratidza kuti Windows Defender yakanyoreswa sei neAction Center seAV uye chishandiso chekuchengetedza spyware, uye kuti inodzivirira sei malware.
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