How to turn on computer without power button

Is there a way to turn on your computer without the power button?

To turn on/off a laptop without the power button you can use an external keyboard for Windows or enable wake-on-LAN for Windows. For Mac, you can enter clamshell mode and use an external keyboard to wake it up.

How can I turn on my computer using the keyboard?

Use the on-screen Start button
  1. Click the Start button in the lower-left corner of your screen. You can also press the Windows key on your keyboard to open the Start menu.
  2. Choose the Power icon. …
  3. When you click the power button, you will have the option to put your computer to sleep, restart it, or power it down.