If your computer isn’t turning on at all—no fans are running, no lights are blinking, and nothing appears on screen—you probably have a power issue. Unplug your computer and plug it directly into a wall outlet you know is working, rather than a power strip or battery backup that may be failing.

How do you fix a computer that won’t turn on?

How to troubleshoot your Windows PC when it won’t turn on
Try a different power source.Try a different power cable.Let the battery charge.Decrypt the beep codes.Check your display.Check your BIOS or UEFI settings.Try Safe Mode.Disconnect everything non-essential.

When I press the power button on my computer nothing happens?

If you’re still getting absolutely nothing when you press the power button, look to see if your motherboard has any idle indicator lights to confirm that the motherboard is definitely receiving power. If not, then you might need a new power supply. Make sure it runs to the motherboard and is well connected.

Use the power button
Locate your computer’s Power button.Press and hold that button until your computer shuts down.Wait until you hear the computer’s fans shut off, and your screen goes completely black.Wait a few seconds before pressing and holding the power button to initiate your computer’s normal startup.