Protect your PC
Get Microsoft Security Essentials for the low, low price of free.
Microsoft Security Essentials
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.
Key Features
Comprehensive malware protection
Supports Windows 7, Windows Vista, and Windows XP
Available in 33 languages
Simple, free* download
Protects you quietly in the background
Automatic updates
Supports Windows 7, Windows Vista, and Windows XP
Available in 33 languages
Simple, free* download
Protects you quietly in the background
Automatic updates
Need security for your business?
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.
