eEye Digital Security offers FREE one year license for Blink Personal Endpoint Security software.

eEye Digital Security is the innovative leader in vulnerability and security research and provides security solutions to users. They are pioneering a new class of security product – Integrated threat management to enhance security. This next generation of security detects vulnerabilities and threats, prevent intrusions, protects all of an enterprise’s key computing resources from endpoint to network assets to websites and web applications.
Blink Endpoint Security is a single, lightweight client that replaces multiple security agents, protecting against known exploits, zero day attacks, and all other attack vectors.
Personal and home users can get one free license of Blink Personal Endpoint Security software for one year from the date of activation.
Just click here, and give your email address to download the product. After downloading (53Mb), install the product. While installing your PC should be connected to internet for activating the product. (Source)