Mycomputer has aquired what seems to be mapsnow.co that places ads or such in small blocks in the right bottom corner of the screen There are published remedies involving mainly removing Google Chrome extension. There is no such Chrome extension to be removed. Likewise, inthe list op programs and aps there is no mapsnow ap to be uninstalled. My security program finds no virus or mal ware. ad blocjker does not block the popups. any ideas?