1, the first notebook of external power unplug, the use of battery power supply, if the leakage of the situation disappears, it is the problem of the socket wire; First unplug the external power supply, using battery power. If not disappear suggest to take to repair, if leakage condition disappears, then indicate is the problem of socket ground wire;
2, confirm that the socket has no grounding, you can use a simple method is a pen or multimeter to test the socket, if the ground voltage is zero, then the socket grounding, if this is the case will change the socket or the cloth ground;
3, in addition to your power adapter or notebook shell insulation performance is not good, should replace the relevant accessories, in addition, low humidity will also easily produce electrostatic phenomenon, which is a phenomenon of electric shock.
4, all is not good words can only take to the professional repair site for inspection and maintenance of what the specific situation caused them to solve OH.