Yes you are absolutely right, your system is not safe when accessing net, some of basic precautions can make surfing safe and easy. I would suggest you to install a good Anti-Spyware, Anti-Virus and firewall other than this you can also download some Add-ons available.
HHOT View is a Browser Add-on can be used with any of web browsers available. It is an innovative and patent-pending browser add-on to support safe, fast, and click less browsing of web pages and rich media content. You can download HHOTT Free Software from
here .
Wish you safe browsing!!