How do I change the WindowsLogo Key to toggle the display on & off?

I have a requirement to turn of the display quickly and turn it back on quickly with a single key stroke.  I have seen it done on another Windows 8.1 Laptop by hitting the WindowsLogo Key.  This cannot be that hard to setup.
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Kyle SantosQuality AssuranceCommented:
Have you ever wanted to hit a shortcut key to turn off the monitor? Sure, you can use the Win+L combination to lock the screen, but that leaves your monitor on… and those of us with multiple monitors find it a pain to hunt down the power buttons all the time.

Let me know if this works for you or not.

To hide the screen contents, you can lock the screen using winkey+L.
To unlock it, you will have to enter your password.

For "one-key-blackout", use a batchfile with nircmd. nircmd is a small freeware that enables you to do 1000 things and more. You can link that batch and use a shotcut key to start it for blackout.

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Windows 8

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