Enhanced Mitigation Experience Toolkit (EMET) is a freeware security toolkit for Microsoft Windows, developed by Microsoft. It provides a unified interface to enable and fine-tune Windows security features. It can be used as an extra layer of defense against malware attacks, after the firewall and before antivirus software.
EMET is targeted mostly at system administrators but the newest version is supported for any Windows user running Windows 7 and later, or Windows Server 2008 R2 and later, with .NET Framework 4.5 installed. Older versions can be used on Windows XP, but not all features are available. Version 4.1 was the last version to support Windows XP.
Microsoft has announced that EMET will reach end of life on July 31, 2018. The successors to EMET are the ProcessMitigations Module—aka Process Mitigation Management Tool—and the Windows Defender Exploit Guard only available on Windows 10 and Windows Server 2016.