My desktop keeps being redirected to 3rd party websaites when I use search engines like google. I believe that it has a virus. My antivirus software can not remove or quarantine the virus. I went to the public library and looked my problem up online.It seems more than one person has had this problem. Can anyone walk me thru the steps to rid my desktop of this virus? I've read posts that recommend using Hijackthis but only under the advice of a pro. Can anyone help?