Remove Java:Malware-gen [Trj] Virus Completely

What is Java:Malware-gen [Trj]?

Java:Malware-gen [Trj] is a terrible computer virus that may insert its harmful codes and registry files into the infected system to arouse quite a lot of PC problems. Without computer users consents, default system configurations may be changed automatically by this nasty pest, including Windows boot sector with which Java:Malware-gen [Trj] can be activated immediately whenever PC starts up.