I am facing problem every now and then, with Internet Explorer. I am not able to use the same. When I try to run it suddenly multiple windows starts opening repeatedly. I hope this not some kind of trojan or virus. I had am getting different ad popup on the screen constantly over and over. And all of them simply belong to an single website. I had shut down the computer to to fix the issue but when I turn on the system back and launch the web browser the problem appear back.