Windows 7 Tip: 
After the release Kaspersky Internet Security 2010 Trial, Symantec also released the Download Norton Antivirus and Internet Security 2010. The beta version of Norton AntiVirus 2010 is the fastest, most proactive protection against viruses, Trojans and worms we have ever offered. The 2010 version of Norton AntiVirus offers superior performance, improved protection, and tools to help preserve the performance of your PC.
See Also: 12 Free Windows Antivirus of 2009
Norton Internet Security offers comprehensive protection against all types of online threats. This release offers superior performance, improved protection, and features to help preserve the performance of your PC.
Download Download Norton Antivirus 2010 here
Download Internet Security 2010
i cant’t open the symantec site from the links given above. and is it really true that Norton put the latest edition of antivirus on net and that free of cost? How is it possible? Is it a valid edition?