Laptop computer doesn't turn on

Updated: 08/03/2018 by Computer Hope

Note: For a desktop computer, see our computer does not turn on page.

Troubleshooting a laptop that does not turn on or boot can be a lot harder than a desktop due to the inability to remove hardware. Below are troubleshooting steps to help identify what may be keeping your laptop from turning on.

Connect the power cable

AC adapterIf your laptop is only running on battery power, connect the AC adapter to eliminate a dead battery as the cause of the problem. Ensure the adapter cord is correctly plugged in on both ends and securely connected. If the laptop works with the adapter plugged in, your battery is dead or defective.

Disconnect from docking station

If your laptop is connected to a docking station, disconnect it and try turning the laptop on to verify the docking station is not the cause of the issue.

Remove any external peripherals

While troubleshooting this issue, disconnect any external devices or peripherals, such as a mouse or a USB thumb drive, to make sure they are not the cause of the issue.

Remove and reconnect battery

Note: Many new laptops (especially MacBooks) are utilizing architecture that does not all their batteries to be removed.

The laptop can also be in a power state preventing it from booting properly. Try disconnecting the power cable and then removing the battery from the laptop. Leave both disconnected from the laptop for at least a minute. After you wait, put the battery back into the laptop, connect the power cable, and try turning the laptop on again.

Drain the computer of electricity

Sometimes a residual electrical charge can keep your laptop from turning on. You can think of it as an "electricity clog." By performing the following steps, you effectively drain your laptop of any electricity and start over, which can result in it powering up.

  1. Disconnect the AC adapter and remove the battery.
  2. Hold down the power button for at least fifteen seconds.
  3. Without replacing the battery, plug the AC adapter back into the laptop.
  4. Press the power button to turn on your laptop.

Note: If this process did not work for you, repeat and hold the power button for one minute or longer at step two.

Bad hardware

If you have gone through all of the sections above and your laptop continues not to turn on, it is likely a hardware component inside the laptop has failed. We suggest contacting the manufacturer of the laptop for recommendations on how to get it repaired. You can also take your laptop to a computer repair shop as they may be able to diagnose the issue and replace bad hardware.

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