Backdoor.Win32.Turkojan.esv has entered the system and this has been alerted to me by the McAfee antivirus, that I have installed in my system. I am using Windows 7 Ultimate operating system and my browser is Opera 10. I have tried deleting it from the antivirus interface. But, it is not allowing me to get rid of the same. Please help me with the possible solutions for getting rid of this problem.