My computer is infected with virus and norton 2003 cant delete it. please help me where i can downlo

my computer is infected with virus and norton 2003 cant delete it. please help me where i can download an antivirus (free) or trial version. so that i can make my system clean

My computer is infected with virus and norton 2003 cant delete it. please help me where i can download an antidownloads

A test was done recently at http://www.virus.gr/english/fullxml/defa... They tested 58 anti-virus app,both free and paid. Here is where the free ones scored in virus detection rates.

2. Active Virus Shield version 6.0.0.299 - 99.62%

http://www.activevirusshield.com/antivir...

7. BitDefender freeware version 8.0.202 - 95.57% (on demand only, No real time protection)

http://www.bitdefender.com/PRODUCT-14-en...

11. AntiVir Classic version 7.01.01.02 - 94.26%

http://www.free-av.com/

17. Avast freeware version 4.7.871 - 87.46%

http://avast.com/eng/download-avast-home...

24. AVG freeware version 7.1.405 - 82.82%

http://www.grisoft.com/doc/1

40. ClamWin version 0.88.4 - 51.23% (on demand only, No real time protection)

http://www.clamwin.com/

46. Comodo version 1.0.0.4 - 41.02%

http://antivirus.comodo.com/

My computer is infected with virus and norton 2003 cant delete it. please help me where i can download an antihouse call