Norton AntiVirus

Norton AntiVirus - Blocks viruses and spyware with advanced protection.
Key Features :

- For Windows® XP/Vista
- Antivirus
- Antispyware
- Internet Worm Protection
- Rootkit Detection

Exchange documents freely using email and instant messaging
- Remove viruses from email
- Block Internet worms at point of entry

Surf the Web and play games online without worry
- Stop spyware from tracking you online
- Block spyware from hijacking your computer

Safely download photos, music, and software
- Remove dangerous threats from files you download

There are other products by Symantec are Norton Internet Security and Norton 360 that have better features like :

Connect securely to any wireless hotspot
-Block hackers from accessing your computer
-Prevent unknown threats from entering your PC

Bank, shop, and invest online with confidence
-Guard against online identity theft
-Inspect Web sites to make sure they're not fakes

Safely download photos, music, and software
-Block suspicious programs
-Allow only authorized programs to connect to the Internet

Back up the files you care about
-Protect valuable files from computer disasters
-Restore damaged or deleted files and folders
-Enjoy 2GB secure online storage

Tune up your PC and optimize its performance
-Find and fix problems that slow your computer
-Remove unwanted Internet clutter and temporary files