HP Pavilion laptop

[Squid]

The laptop I bought 2 years ago, and which was serviced a year ago, is now dead.  No signs of life whatsoever.  No lights, no sounds, no fan.  It's almost as if no electricity is making it into the device.  I unplugged everything, tried again and got nothing.  I plugged the cord into a different outlet - nothing.  The on/off switch normally has a light in it even when the computer is off.  There is no light. 

The only thing I haven't done is remove the battery and try again.  I'll do that.

Does anyone have any suggestions for powering this thing up so I can get an inkling of what is wrong? 

Thank you.

[Mayhem]

Try removing the battery completely and then plug it in and see if it powers up.

My laptop battery also died a few years back and shorted out. Once I removed the battery, the system booted up just fine.

[Squid]

Removing the battery got it up and running.  The laptop went into an immediate Windows update - I had no choice.  It seems to be running ok, maybe a tad slower.  I'm just happy to have it going.  Thank you.