From last week my antivirus software is giving me an alert message that W32.Sobig.D@mm is detected on my computer system. I have deleted this W32.Sobig.D@mm from my computer systems many times but it comes back when I restart my computer system. I have no idea why this is happening. All I need to know how to delete this W32.Sobig.D@mm from my computer system. I will be waiting for the related replies.