I have been trying to update my computer to service pack 2 but it keeps failing. I get the error code in the subject, file not found. I even tried a clean boot and shut off my anti virus and firewall. I tried cleaning up the windows update history as well. I tried the system update readiness tool as well but that just hung. I had the computer previously cleaned in this forum, http://www.bleepingcomputer.com/forums/t/476212/possible-spyware/. I am not sure if some files were corrupted after the cleaning. I am running the 64 bit version on a HP Pavilion laptop. I hope someone can help because I would like to have the latest version. Thanks.