Use Microsoft Security Essentials to help guard against viruses, spyware, and other malicious software. It provides real-time protection for your home or small business PCs.
Microsoft Security Essentials
is free* and we designed it to be simple to install and easy to use. It runs quietly and efficiently in the background so you don't have to worry about interruptions or making updates.
Comprehensive malware protection
Supports Windows 7, Windows Vista, and Windows XP
Available in 33 languages
Simple, free* download
Protects you quietly in the background
Microsoft Security Essentials is available for small businesses with up to 10 PCs. If your business has more than 10 PCs, you can help protect them with
Microsoft System Center 2012 Endpoint Protection
deployed and managed through
Microsoft System Center 2012 R2 Configuration Manager.
* Internet access fees may apply while downloading. Your PC must run
to install Microsoft Security Essentials.
Microsoft Security Essentials Privacy Statement
Microsoft Security Essentials License Agreement
Get more information on Microsoft Security Essentials.
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Get help with Microsoft Security Essentials.
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