Computer won't start

[Ranger]

Hello,

It's very strange, but my laptop computer just doesn't start anymore.

When I press the start button, I hear the sound of the hard drive trying to boot fot two seconds, but then it stops.
there is absolutely nothing on the screen, it just remains black.

I always use it with AC adapter plugged in and the batteries are full.

So I wonder where I should start the investigations from.

Any suggestions would be welcomed.

Thanks.

[Sava700]

what brand is it?

[YeOldeStonecat]

First thing I try with laptops with power on issues...
*Unplug ac adapter
*Remote laptops battery.

After a minute...put back together..and try to power up.

How old is it?