Microsoft Security Essentials

Microsoft Security Essentials 4.2

Free
It helps you guard your computer against viruses and malicious applications
4.0  (1,946 votes)
7.0
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Microsoft Security Essentials is a program that helps you guard your computer against viruses, spyware and other malicious applications. It provides real-time protection for your home or small business PCs. The program runs quietly and efficiently in the background.

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