ISBN: | 978-5-5106-3702-1 |
High Quality Content by WIKIPEDIA articles! Microsoft Security Essentials (MSE) is a free antivirus software product for Microsoft Windows operating systems that provides protection against different types of malware such as computer virus, spyware, rootkits and trojan horses. Unlike the Microsoft Forefront family of enterprise-oriented security products, Microsoft Security Essentials is geared for consumer use.