Unwanted Shut-off I will be doing something on my laptop and it will just randomly shut off. No warning, no goodbye screen, it simply shuts off. I think that it is only happening when playing games (including when I install them sometimes). My comp and AC adaptor are pretty hot when this happens, but it has always has been like that and hasn't had this happen until recently.

Use this utility
RightMark CPU Clock Utility (RMClock)
 to keep track of temperature of CPU when you use any CPU intensive feature. temp above ~110 might shut off your computer. if temp increases its the heating problem. you can restrict the usage of cpu to lower clock by this utility so that it wont heat so much, but it will affect performance also.

Work out the airflow through the machine. Usually a fan in the base will suck air in the bottom and blow it out the side/ back. Use vaccuum to clear any dust at the inlet and compresed air to clear all vents. Always use laptop on a hard surface (not your lap!) to make sure the air flows properly and keeps it all cool.

First Charge up you battery while the computer is off. Once fully charged unplug the adapter and play the game...see if it shuts down. If not replace that ac adapter. If it still shuts down... Your unit is overheating most likely. When you play high tech games which cause the processor and fans to run harder once it gets to hot. And most times you can hear the fan running loud on your laptop. 1. check the system requirements on the game 2. Are you overclocking your processor, check your bios 3. Lower the graphics settings and features in your game.. see if it shuts down 3.Or while you are running the game do the follow hit ctrl, alt, del buttons at the same time. A task manager box will pop up. Click on the tab Performance.....what is your cpu usage? 100% if so it's running the proccessor hard. Now in the same box click on Processes, then user name, you will then see all processes that are running at that time. If you want to play the game off line...only!!! you can stop some processes from running. On the bottom right hand corner of your screen by the clock you will see icons that load up at startup. Right click the ones not in use, like virus scan, firewall, other background applications that are running by right clicking over the icon and exiting or closing the application. Now keep in mind before you go back on line you should restart your computer so your security software will reload. Other reasons would be internal cleaning, fan, heatsink replacements and so forth. Which may need to be performed by a professional repair shop. Now they do have a laptop colling pad which have worked for some people. Also these laptops can overheat quickly, do not sit them on beds, and your lap when using ventilation is important. And also you might still want to have that ac adapter checked out. If all else fail... restart you computer in safe mode...try running the game..see if it shuts down. Good luck with your games