#2 why my laptop shutdown by itself
right click than PROPERTIES
skroll to WAKE FROM SHUTDOWN
# From yahoo answer : Is is shutting down while you are using it, or when it is sitting idle? If it is when you are using it, you will need to take it for service. If it is when it is sitting idle:
right click on the desktop, select "properties", hit the screensaver tab. In the "power" section, change the settings so it won't shut off when idle.