Microsoft Security Essentials provides real-time protection for
your home PC that guards against viruses, spyware, and other malicious
Microsoft Security Essentials is a free* download from
Microsoft that is simple to install, easy to use, and always kept up to
date so you can be assured your PC is protected by the latest
technology. It’s easy to tell if your PC is secure — when you’re green,
you’re good. It’s that simple.
Microsoft Security Essentials
runs quietly and efficiently in the background so that you are free to
use your Windows-based PC the way you want—without interruptions or
long computer wait times.
- Comprehensive malware protection
- Simple, free download*
- Automatic updates
- Easy to use