I am facing a bit problem with windows explorer on my system. Whenever I try to open the same I am getting a popup error on my screen. The error stays that memory could not be overwritten. I had tried to install explorer back a number of times but it does not work. I am using windows xp pro here and it looks like there is some kind of serious virus problem. I tried to ran antivirus scan here but that also did not worked. What should I do to fix the issue. o.