Now you can work—and play—on your PC more safely. With Microsoft® Security Essentials, it’s easy to help protect your PC from viruses, spyware, and other malicious software for FREE* with the same award-winning technology used by millions of consumer and enterprise PCs around the world.

* Microsoft Security Essentials is available at no charge for customers who are verified to have a copy of genuine Windows in select countries. No registration or personal information is required, only automatic verification of your genuine Windows installation.