text: i keep geting popups saying that my registry is corrupted or windows have problems. is this legit? these popups are blue and white boxes. i have up to date norton,it says that everything is ok no, they are not legit.  they are pop up ads.  you can install a pop up blocker (google toolbar and yahoo toolbar come to mind) or use firefox, which has pop up blocking built in.  for good measure, you could run spyware/malware removal tools such as adaware or spybot, among others.