Can any one advise me on what are the better anti-virus software avaliable in the market?

All of these are ones that I personally use and all are free.

AVG Removes I-Worm/Stration · BackDoor.Generic3.GBB and .GBC · Worm/Generic.FX · Exploit.WMF

http://free.grisoft.com/doc/5390/lng/us/tpl/v5

Spybot - Search & Destroy detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications. Spyware silently tracks your surfing behaviour to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies. If you see new toolbars in your Internet Explorer that you haven't intentionally installed, if your browser crashes inexplicably, or if your home page has been "hijacked" (or changed without your knowledge), your computer is most probably infected with spyware. Even if you don't see the symptoms, your computer may be infected, because more and more spyware is emerging. Spybot-S&D is free, so there's no harm giving it a try to see if something has invaded your computer.

http://www.safer-networking.org/

http://superantispyware.com/

SUPERAntiSpyware is the most thorough scanner on the market. Our Multi-Dimensional Scanning and Process Interrogation Technology will detect spyware that other products miss! SUPERAntiSpyware will remove ALL the Spyware, NOT just the easy ones!

Easily remove over 100,000 pests such as SmitFraud, Vundo, WinFixer, SpyAxe, SpyFalcon, WinAntiVirus, AntiVermins and thousands more!

Make sure after you download any of these, that you update them.

*Be sure to come back to Yahoo Q&A and vote for one of the answers as best answer!

From a recent test at www.virus.gr the top 25 in virus detection capabilities are: ("in the wild" viruses)

1. Kaspersky version 6.0.0.303 - 99.62%

2. Active Virus Shield by AOL version 6.0.0.299 - 99.62% (free)

3. F-Secure 2006 version 6.12.90 - 96.86%

4. BitDefender Professional version 9 - 96.63%

5. CyberScrub version 1.0 - 95.98%

6. eScan version 8.0.671.1 - 95.82%

7. BitDefender freeware version 8.0.202 - 95.57% (free)

8. BullGuard version 6.1 - 95.57%

9. AntiVir Premium version 7.01.01.02 - 95.45%

10. Nod32 version 2.51.30 - 95.14%

11. AntiVir Classic version 7.01.01.02 - 94.26% (free)

12. ViruScape 2006 version 1.02.0935.0137 - 93.87%

13. McAfee version 10.0.27 - 93.03%

14. McAfee Enterprise version 8.0.0 - 91.76%

15. F-Prot version 6.0.4.3 beta - 87.88%

16. Avast Professional version 4.7.871 - 87.46%

17. Avast freeware version 4.7.871 - 87.46% (free)

18. Dr. Web version 4.33.2 - 86.03%

19. Norman version 5.90.23 - 85.65%

20. F-Prot version 3.16f - 85.14%

21. ArcaVir 2006 - 83.44%

22. Norton Professional 2006 - 83.18%

23. AVG Professional version 7.1.405 - 82.82%

24. AVG freeware version 7.1.405 - 82.82% (free)

25. Panda 2007 version 2.00.01 - 82.23%

yes avg go to download.com and look 4 avgfree thats is a very good one thats wht i use and i dont have things go worng with my computer like when i was use they other stuff

i would choose norton or macefee