I am using Windows XP Service Pack 3 and my browser is Opera 10. The problem that I am facing is that I am not able to remove Backdoor.Win32.Bredavi.dt. I have tried to eradicate it by scanning with the help of the McAfee antivirus that I have installed in my system. This infection is not allowing me to view all the hidden files and folders in my system. Please help me with the probable solutions that can be used in this situation.