When a laptop or desktop will not boot, the issue is often related to power, peripherals, or a temporary hardware fault. A few simple checks can resolve many boot problems before more advanced troubleshooting is needed.


1. Check the Power Connection

Start by verifying that the device is receiving power.

  1. Make sure the power cable or laptop charger is firmly connected.

  2. Confirm the power outlet or surge protector is working.

  3. Look for power indicator lights on the computer.

If there are no lights or signs of power, the issue may be with the power supply or charger.


2. Perform a Power Reset

A power reset can clear temporary hardware issues.

For a laptop:

  1. Turn the laptop off.

  2. Disconnect the charger and any external devices.

  3. If the battery is removable, remove it.

  4. Press and hold the power button for 15–20 seconds.

  5. Reconnect power and try turning it on again.

For a desktop:

  1. Turn the computer off.

  2. Unplug the power cable from the back of the computer.

  3. Hold the power button for 15–20 seconds.

  4. Plug the power cable back in and try starting the computer.


3. Disconnect External Devices

External devices can sometimes prevent a system from booting.

Disconnect all peripherals except the keyboard and mouse, including:

  • USB drives

  • External hard drives

  • Docking stations

  • Printers

  • External monitors

Then try turning the computer on again.


4. Check the Monitor (Desktops and docked laptops)

Sometimes the computer is running but the display is not working.

  1. Make sure the monitor is powered on.

  2. Check that the video cable is securely connected.

  3. Verify the monitor is set to the correct input source.

If the monitor shows “No Signal,” the computer may still be starting but not displaying video.


5. Look for Error Messages or Beeps

During startup, the computer may show a message or emit beep codes that indicate a problem.

Examples include:

  • Boot device not found

  • Operating system missing

  • Memory error

If you see an error message, write it down or take a photo to provide to IT support.


When to Contact IT Support

Contact IT if:

  • The computer shows no power at all

  • You hear repeated beep codes during startup

  • The device shows a hardware error message

  • The system repeatedly fails to start Windows

These situations may require hardware repair or advanced troubleshooting.