I know this has nothing to do with window cleaning but can someone help please,i keep getting winweb popping up on my screen asking me to update telling me my computer is at risk if i don`t.I know this could be a potential virus and don`t click on it but i can`t stop it popping up on screen,i`ve done virus checks with Norton and it found 2 and cleaned them up but this winweb pop up box keeps coming up,help please.