Laptop unexpectedly shuts down...?

Question

My laptop's started shutting down unexpectedly. I have an HP Pavilion 9000 laptop and I'm using vista. My fan seems to be working fine. Does anyone know how I can fix this?

Answer 1

Does it restart back up?

That happens sometimes if some programs use too much memory and it just overloads the laptop.  

Answer 2

your battery may be dead

Answer 3

put on da charger since ur laptop has less battery