1 Antivirus is Not installed
2 Antivirus is OutOfDate(Not Updated)
3 Automatic Update option is OFF
We can solve this problem using following steps:-
1.Click on "START" Button
2.Go to "Control Panel".
3.Go to "Security Centre".
4.Click on "Change the way security Center alerts me"
(Which is left hand side on Security center)
5.Uncheck all options
And that's it!!!!