Computer Turns Off by Itself
This issue is usually due to a dying power supply of a defective battery, bad cable connections, or simple overheating. The tips for solving the problem include checking first that the cables are well connected. If the cable is OK, then it is important to check if the computer is very hot, or if the fan is working as it should. Sometimes you might need to clear away dust or debris from the fan. For a laptop, the battery could have deteriorated over time, and unplugging from power means the computer switches off. In this case, itâs best to just buy a new battery.