my laptop lenovo G560 intel pentium inside..... i found 1 new problem in my laptop,, it suddenly getting shut down while i m in work.... shutting down time from starting is different everytime....i taught it was problem with heatsink fan n i cleaned it n problem follows me again....if sumone have solution to this problem plz let me know as soon as possible...thnkx
Cleaning might not be enough. How old is that laptop?
You might need to apply new thermal paste. Download anything to monitor your temps and see if its overheating. Make sure your fan is actually spinning.
Since its laptop try it only on battery and only on power cord.