Why is my laptop’s fan not spinning at all?

Check the power supply
Make sure that the laptop is plugged in and the power supply switch is turned on.
Check if the fan is broken or clogged
If the fan is difficult to move by hand, it may be unable to spin and may need to be replaced.
Clean the fan
You can use a can of compressed air to blow away any dust and dirt that may be blocking the fan.
Check the temperature settings
Make sure that the laptop’s fan is not set to stay off at low temperatures.
Try restarting
Restarting your laptop may help to reset any settings that may be preventing the fan from spinning.