My background screen has been blue'd from the background photo that I had, and I have been getting security messages from Windows to say that my updating has been turned off. It shows that it's on when I go through the control panel, but I keep getting these messages. On booting, I get text saying that windows is starting in this manner because of a security concern (as well as I remember), and I pressed F8 to get the system going. Please advise.
Ellis