Almost all of us are depending on our computers and it will be a serious problem if something goes wrong. Of course, you need to get your computer back up and running again as soon as you can. So, we are here to help you fix your issue.

In this article, we will discuss the most common reasons for computer or laptop power failure and how to fix it.

There are several reasons why a laptop/computer won’t turn on since a total loss of power is one of the worst scenarios but it might be a simple issue you can fix it yourself.

You have to notice if the problem had started when you have connected any hardware peripherals (like a monitor, keyboard, printer, scanner etc.), then it could be a driver conflict problem. Then you should uninstall it and check if the problem still exists.

Caution: Please note that the following steps are to troubleshoot the power issue and you have to determine if the fix is something you can perform by yourself or it’s a complicated problem and you should seek professional help.  


  1. First things first, and before starting a time-consuming troubleshooting process make sure that the power button is turned on. For a computer desktop, the power button is usually located on the front of a computer’s case, for a laptop, it will be on the side.
  2. Check your power button on the computer’s case and test it if it is not working probably you will have to replace it.
  3. For a computer desktop, make sure that you have plugged in the monitor and turn it on.
  4. In case you work on your computer and you leave it on all the time then try to give your computer some break by turning it off and follow the next steps to free memory and reset hardware:
    1. Unplug your computer or remove the battery if you are using a laptop.
    1. While your computer is unplugged, press and hold down the power button for 30 seconds.
    1. Plug your computer back or reinsert the battery in a laptop then turn it on.
  5. Ensure that all plugs are securely and firmly in their sockets. Its one of the common reasons why your computer won’t power on.
  6. Unplug all power cables and carefully examine it for any damage. Also, for a laptop check connection between different parts and the AC adaptor.
  7. Try to unplug your computer from the wall socket and plug it in a different wall power socket. Maybe the problem is in the wall power outlet.
  8. Remove any power distribution device (like an extension socket, power strip, etc.) between the wall and your computer. In other words, plug your computer directly into the wall. The problem could be in the power distribution device so you will likely need to replace it.
  9. For a laptop, remove the battery and try to turn it on using the AC power only. If it works then you should replace the battery as it is the cause of the problem.
  10. Carefully check every power socket in the computer for any broken pin that might be keeping the computer out from receiving power and charging the battery. 
  11. Replace the AC adapter for laptop or power cable for a computer. A bad adapter or cable is one of the common reasons why your computer won’t turn on.
  12. Power supply unit test, at this point in your troubleshooting, it’s most likely that your computer power supply unit is not working probably and you should replace it. However, you should test it first and its recommended to seek some technician help.
  13. If you have examined all the previous troubleshooting advice (and you are sure that your wall power, power supply unit and power button are working) and still your computer is not powering on then replace your computer’s motherboard. Also, its recommended to seek some technician help.
  14. When you turn your computer on and it beeps several times then turns off, this means your computer has detected a problem. These beeps are referred to as beep codes which have a pattern that is designed to tell you what is the problem with your computer. It’s highly recommended checking your manufacturer manual or get some professional help.

If nothing from the previous advice seems to be working and you feel uncomfortable testing your power supply unit or replacing your computer’s motherboard or even opening your computer case then get back to your computer manufacturer and check if you can be qualified for a free repair. If you don’t, let them give you a recommendation for a professional and authorized technician or you can contact us via our contact page.

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