Sometimes when using computers disasters can happen. If your computer won’t boot or you can’t find your data, then panic starts to set in. Instead if and when it happens first you need to determine if the issue is being caused by hardware or software. First thing to do is check all cables and make sure everything is hooked up and plunged in all the way. If the power turns on listen for the fan to start of if you can hear the hard drive spinning. If nothing is heard you most likely need to replace your power supply.