Plug Into The Wall Without Surge Protection
This is something that may actually ruin your PC laptop computers as well as the data it contains.
There are some people who think that their devices are at risk only during an electrical storm; however, what you need to realize is that if there was something that interrupts the electrical circuit and then made the current start again, it may end up harming your components.
If you plugged an appliance into the same circuit, you may end up causing a surge. Therefore, try to protect your system by always using a surge protector, and make sure you invest in a reliable one.