I have a personal computer and it runs on the Windows XP and it has an antivirus which is called AVG antivirus. I have a virus on my computer which is called "Trojan.Dropper.TJJ". It is a trojan virus and it it unremovable form the computer. I have scanned my computer to remove this virus but unfortunately the antivirus is unable to find it and remove it form the computer. So please help me in removing this virus.