How to solve the problem of notebook fan

Poor kid! ? This machine must be dismantled. Removing the fan is too easy. Locate the screw marked with the keyboard mark on the back. Just four screws. Remove the keyboard after disassembly. You can see the fan. Look at the speed of the fan first. If it's not spinning fast. I advise you to change it. ? If the speed is fast. Anything? Just cleaning the dust.