My laptop turns off without any reason

I am having trouble with my Evesham laptop. It turns off without any reason. When I turn it on is fine, then after about an hour or two it turns off. The times change though. I had it on for the whole day without using it but it didn’t turn off and when i went on it, after half an hour it shut down. Can you help me?

I think your laptop shuts down without any reason because of overheating. Most likely the heat sink is clogged with dust and has to be cleaned. You can clean the heat sink with compressed air, blow off the heat sink through the grill on the bottom of your laptops. Some people use vacuums for removing dust from the heat sink.
The laptop will not shut down by itself when it’s idle because it’s not using any CPU resources and the CPU is not hot.