I have a trojan on my computer =(?

Okay this is really annoying, i got my computer a year ago and it had a months free nortan anti virus on it which was really good but then it ran out and i downloaded a free antivirus called Avira antivirus guard or something like that. anyway its not very good and now i have viruses, we have PCguard but i havnt put it on my computer yet.

SO, since im only 14 i cant exactly go and buy nortan so il have to put the PC guard on which is good but i dont know whether it will delete all the viruses so i was wondering if i set my computer to factory settings will the viruses go aswell?

and how do i even set it back to factory settings?

thanks!

I have a trojan on my computer =(?free antivirus download

if u're not very much against piracy then u can use cracked versions of norton antivirus that come along with key generators. download it using bit torrent.

http://www.torrentz.com/search?q=norton+...

u need not to reset ur computer. this will remove all viruses.

I have a trojan on my computer =(?internet security

factory setting will wipe everything you will need to insert the recovery cd which came with the pc if you had a proper trojan you would not be able to add antivirus it would not let you try an online scan with trend micro (house call) or norton has a free one I think.