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DownloadthelatestversionofMicrosoftSecurityEssentialsforWindows.AfreeantivirussoftwarefromMicrosoft.Forsometimenow,Microsofthasbeen...,MicrosoftSecurityEssentials–apopularsoftwarefromthecompanyMicrosofttoprotectthesystemfromviruses,spyware,wormsandothermalwarethreats.,2016年11月29日—MicrosoftSecurityEssentials是一個免費*軟體，可從Microsoft下載，安裝簡便、使用輕鬆，而且常保最新狀態，讓您確信電...

參考資訊如下
A free antivirus software from Microsoft

Download the latest version of Microsoft Security Essentials for Windows. A free antivirus software from Microsoft. For some time now, Microsoft has been...

Download Microsoft Security Essentials 4.9.218

Microsoft Security Essentials – a popular software from the company Microsoft to protect the system from viruses, spyware, worms and other malware threats.

Download Microsoft Security Essentials from Official ...

2016年11月29日 — Microsoft Security Essentials 是一個免費*軟體，可從Microsoft 下載，安裝簡便、使用輕鬆，而且常保最新狀態，讓您確信電腦受到最新技術的保護。

Microsoft Security Essentials

2023年3月30日 — Microsoft Security Essentials, free download for Windows. Free antivirus program that provides real-time protection against viruses, ...

Microsoft Security Essentials防毒軟體

2020年1月14日 — 如果是執行舊版Windows 7 的電腦，您可以免費下載Microsoft Security Essentials。 Microsoft Security Essentials Windows 7, Windows Defender

如何手動下載最新定義更新Microsoft Security Essentials

說明手動下載最新病毒和間諜軟體定義更新的步驟，Microsoft Security Essentials。