How does the on/off button work?

To turn on the case, press the button and switch it to the side where the green dot is pushed down. This should turn on the case if it is plugged in.

To turn off the case, press the button again but then on the opposite side so the green dot is up. This should turn the case off. You can always manually turn the computer off by going to the bottom left, pressing the windows logo and choosing shutdown in the power options.

If you have the old case with a full green button. Press the button to turn on the case.

To turn off the old case go to the bottom left of the screen, press the windows logo then press the power button and click shutdown.