How do I shut down Doctor Worry's computer?

Drag the red power symbol off the monitor and drop it on the red button on the black computer tower.

Why does tapping the screen icon fail?

The screen icon is only the movable control; the physical red button on the tower is the actual shutdown target.

The monitor turns black, a green check appears, and Doctor Worry's anti-virus dialogue starts.

Brain Test 4 level guide

medium 4 colors

Brain Test 4 Level 104 shuts down Doctor Worry's PC by moving the monitor power symbol to the tower's physical red button.

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Press and hold the red power symbol on the blue monitor.
Drag it down to the separate red button on the front of the black computer tower.
Release on the tower button and wait for the monitor to turn black.
Wait for the green check and the completion dialogue.

Colors in this level:

Blue, Red, Black, White

Board notes 5 details

Layout: Doctor Worry stands beside a desk with a blue monitor, a red power symbol on the screen, and a black computer tower with a separate red front button.
Goal: Turn off the PC.
Opening: Drag the red power symbol from the monitor to the red button on the computer tower.
Danger Zone: Moving the symbol around the monitor does not shut down the computer; the hardware button is the target.
Mechanics: The level has a draggable screen icon and a distinct physical power button below it.

How do I shut down Doctor Worry's computer?
Drag the red power symbol off the monitor and drop it on the red button on the black computer tower.
Why does tapping the screen icon fail?
The screen icon is only the movable control; the physical red button on the tower is the actual shutdown target.
What confirms success?
The monitor turns black, a green check appears, and Doctor Worry's anti-virus dialogue starts.