Chosen Solution
When I am doing things on my laptop, like playing games and watching videos on Youtube, my laptop just shuts down without any notice. This only happens when I’m on battery power, and it happens at any given time, even when the battery is at full charge! For the conditions: Windows 7 Pro High Performance Battery Setting Got a new battery a few months before Windows Aero theme for window border Hope this here helps!
If this is only happening on battery power, then it is most likely a battery related issue. The replacement battery you got could be defective or a very low-quality replacement (Been there, thanks ebay!), or an issue with the battery connection on the motherboard. Was your old battery completely dead? If not and you still have it, try swapping back and seeing if the problem persists.
You had board issue,or the processor is overheating