**I have an HP laptop that will power up for half second the shut down.** When starting the laptop it come on for half second then shuts down but the problem is not just that the laptop power come and goes off continuelly. It dose it with the battery also. Need a fixs for this problem. Your advice is appreciate.
Send it in to the repair depot for service. It is a hardware problem - possibly something as simple as a bad capacitor or connector, but these forums can only suggest possibilities, and likely not a real reason or solution.