I am having a Dell latitude laptop; this is running with windows 7 OS. the stem was running fine till the last date, but form last morning its creating a problem, after start the system it takes few time to start and along with this another problem is that after the start up windows will appear first of it appears as the blue screen and reboots automatically, I see this problem any times, every time it happens the same thing. I can’t understand the problem. What should i do now o overcome from this problem? Any input will be appreciated greatly.