DELL laptop showing white screen after start

kr.sud Posts 1 Registration date Tuesday July 15, 2014 Status Member Last seen July 15, 2014 - Jul 15, 2014 at 01:05 PM

Friends from last two days when ever I turn on my dell inspiron the screen turns white after I hit the escape button after a minute it stars booting normally.. i am unable to understand what is happening... kindly help so that it can be resolved