Norton 360

orton 360 provides all-in-one protection that keeps you, your family, your PC, and your information secure. This comprehensive solution combines Symantec’s proven, industry-leading security and PC tune-up technologies with new automated backup and antiphishing features, providing a full circle of protection.
A very good and lite software. And hey its Beta is free, so grab it while you can.
Download Link:
http://www.symantec.com/norton360beta/