HP Laptop with windows 7 won't turn on

I have an HP 630 Laptop that literally stopped working! It is (should be) fully charged, indicator light on computer where charger plug enters is lite (white) and the power button, when pressed, will light up, then goes off! Can anyone advise as to what is going on?

Thank you.
 
Remove the battery and the power adapter, and hold down the power button for 30 seconds. Reconnect the power adapter and see if the laptop starts. If it does, shut it off, and re-install the battery and see if the laptop starts up again. If it doesn't start, the battery may be bad. Remove it and use the AC adapter until you can get a replacement battery
 
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