Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software. Space demand on the hard disk: only 17.63 MB. Microsoft Security Essentials is a free* download from Microsoft that is simple to install, easy to use, and always kept up to date so you can be assured your PC is protected by the latest technology. *Your PC must run genuine Windows to install Microsoft Security Essentials. It’s easy to tell if your PC is se... More info »
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