Follow these steps
1
Check the wall socket and try a different socket if possible.
2
Inspect the charger cable and connector for heat, bends, loose parts or damage.
3
Disconnect the charger, hold the laptop power button for 20 seconds, then reconnect power and try again.
4
If the battery is removable, shut down, remove it, connect the charger and test whether the laptop powers on.
5
Open Windows battery settings and check whether charging is paused at a battery-protection limit.
6
If the charger LED turns off when connected, stop using it and seek professional help.