Suffer from Trojan.gen. and Trojan gen.2 Symantec Endpoint Protection Small Business Edition

I have been googling around and searching for solution. It seems that I am similar to the other posts and victims, my laptop is suffer from the Symantec AntiVirus Detection Results Popup of Trojan.gen and Trojan.gen.2. However, all of the post has a different verison operating system.

 

I have cleaned my pc with ccleaner and scan with multiple antivirus software (too many that I don't even remember). Yet they all have the same conclusion - no help!

 

My system use:

Window XP

Media Center Edition

Verison 2002

Service Pack 3

 

I don't know if I have 32 or 64 bit but I would assume is 32 because I brought this computer in 2006.

 

School is starting soon and I must have my computer. Please Please Please help! Thanks so much!!!!!