<human>:  How do you troubleshoot a laptop that won’t turn on?
<bot>: First, check to make sure the laptop is plugged into a power source. If it is, then check all cables and connections to the power source and the laptop itself. If necessary, try using a different power source. If that doesn't work, check to see if the laptop battery is charged. If the laptop still won't turn on, try resetting the laptop's power supply and/or restarting it. If that fails, it may be an issue with the laptop's hardware and you may need to have a professional take a look at it.