Could you please provide more information to better assist you?
The model of your PC (windows key + R type msinfo32, hit enter and look for system model):
Intel Processor model (can be found in window given in previous step):
When did it start?
Have you added new hardware to your system?
Is the fan of your computing working?
Are the exhaust vents of the laptop unobstructed?
Have you cleaned the computer recently?