I have a problem. My laptop is not powering on regardless of being on battery or adapter. There are no lights turning on once I press the button, just completely nothing. However, the light of the battery being charged does turn on once I plug in the adapter. So I'm sure there is some power going over the whole system. I have left the laptop at peace after some tries on the power button and went on another laptop to look up the problem. After like 30 minutes did it turned on out of itself without any further problem. A restart was working too perfectly. But once I turned it off and tried to turn it again was it not working anymore. I tried pulling out the adapter and battery while then holding the power button for over 30 seconds without any success. What can be the problem and how to solve it? It's kind of urgent to me since I use that laptop for my study a lot. Now I'm on another laptop with Windows Server 2012, might put 8 on it though.