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Microsoft Security Essentials has been designed by Microsoft and it is a powerful antivirus solution to protect your computer.

Key features

Even if it seems basic and simple, Microsoft Security Essentials provides better protection against malware such as virus, trojans, worms and spyware. Its installation is easy and fast. After installation, you get automatic updates daily, which ensures the protection of your computer against new threats. To make you aware of your computer security, this antivirus uses different colors to attract your attention. Green means that your computer is safe. Red and yellow mean a threat. In case of a threat, Microsoft Security Essentials will inform you along with recommendations. The user-interface is clean and well organized. Nothing new is on it so that anyone who are used to antivirus will stay on the safe side. It offers three scanning modes : quick, full and custom. It's up to you to choose the one that suits you. Note that this antivirus offers real-time protection and virus definition updates.


Easy installation and use, automatic updates and lightweight. 3 different scanning modes.


No firewall and too simple for advanced users.


Alternative spelling: mseinstall-4.4.304.0.exe, mseinstall.exe