Microsoft Security Essentials

Microsoft Security Essentials (MSE) is an antivirus software (AV) product that provides protection against different types of malware such as computer viruses, spyware, rootkits and Trojan horses. It runs on Windows XP, Windows Vista and Windows 7, but not on Windows 8, which has a built-in AV component. The license agreement allows home users and small businesses to install and use the product free of charge. It replaces Windows Live OneCare, a discontinued commercial subscription-based AV service, and the free Windows Defender, which until Windows 8 only protected users from adware and spyware.

Built upon the same virus definitions and scanning engine as other Microsoft antivirus products, MSE provides real-time protection, constantly monitoring activities on the computer and scanning new files as they are downloaded or created and disabling detected threats. It lacks the personal firewall of OneCare or the centralized management features of Forefront Endpoint Protection.

Microsoft's announcement of its own AV software on 18 November 2008 was met with mixed reactions from the AV industry. Symantec, McAfee and Kaspersky Lab—three competing independent software vendors—dismissed it as an unworthy competitor, but AVG Technologies and Avast Software appreciated its potential to expand the consumers' choice of AV software. AVG, McAfee, Sophos and Trend Micro claimed that the integration of the product into Microsoft Windows would be a violation of competition law.

The product received generally positive reviews praising its user interface, low resource usage and freeware license. It secured AV-TEST certification on October 2009, having demonstrated its ability to eliminate all widely encountered malware. However, it lost the certificate on October 2012, having shown a constant decline in protection and repair scores. According to a March 2012 report by anti-malware specialist OPSWAT, MSE was the most popular AV product in North America and the second most popular in the world, which has resulted in the appearance of several rogue antivirus programs that try to impersonate it.

Read more about Microsoft Security Essentials:  Features, Development, Licensing, Market Share, Impersonation By Malware, See Also, References

Other articles related to "microsoft security essentials, microsoft":

Windows Defender - History - Conversion To Antivirus
... Windows Defender is superseded by Microsoft Security Essentials, an antimalware product from Microsoft which provides protection against a wider range of ... Upon installation, Microsoft Security Essentials disables Windows Defender and takes over its duty ... In Windows 8, Microsoft upgraded Windows Defender into an antivirus program comparable to Microsoft Security Essentials ...

Famous quotes containing the words essentials and/or security:

    A personality is an indefinite quantum of traits which is subject to constant flux, change, and growth from the birth of the individual in the world to his death. A character, on the other hand, is a fixed and definite quantum of traits which, though it may be interpreted with slight differences from age to age and actor to actor, is nevertheless in its essentials forever fixed.
    Hubert C. Heffner (1901–1985)

    Thanks to recent trends in the theory of knowledge, history is now better aware of its own worth and unassailability than it formerly was. It is precisely in its inexact character, in the fact that it can never be normative and does not have to be, that its security lies.
    Johan Huizinga (1872–1945)