Is there a quick keyboard shortcut to turn off your monitor?

There's not a shortcut key or hotkey, but simply create a desktop shortcut and use the command below as the target, name it "Turn Off Screen" or something like that, and you're done! It's a script that runs in PowerShell that invokes the command to turn off your display. Just double-click the shortcut to turn screens off without locking the PC, same effect as when they are turned off with your power settings.

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -command "(Add-Type -MemberDefinition '[DllImport("user32.dll")] public static extern int PostMessage(int a, int b, int c, int d);' -Name f -PassThru)::PostMessage(-1, 0x112, 0xF170, 2)"

Work perfectly!

This should be the recommended answer.

To help put your mind at ease, the amount of energy your monitors are using is such a significantly small amount, that even if you left them running 24/7 for an entire month, assuming they are pulling a constant 60 watts, or 120 watts combined, after 31 days that will come out to 89.28 kWh. And at a rate of $0.30 per kWh (US dollar), that comes to a total of $26.78. So that's $26.78 to run both monitors

Your response could hardly be more wrong. First of all, my graphical 30" monitor has 250W - that in your numbers translates to US$111.58 bill for two monitors, which for some people is substantial money, especially when you realise annually that's US$1339. But that's not the whole story. EVERY monitor burns out, disregarding of the technology. In Summer, the excess heat can also be rather annoying, or if you want to watch a TV in the same room and the monitor, being on, is causing an unwanted radiation whilst there's a reason why the computer needs to be kept running. Either way, discussion about how much pointlessly burned electricity and how much extra electricity bill is too much, is absolutely pointless. It's wasteful, and should be avoided, fullstop.

Just to add my 5¢, what I do is I lock my computer when I leave it - it's a good habit anyway; Due to my screensaver settings, this will switch off the monitors in 1 minute after I'd locked the computer. I guess the reason why MS doesn't want to provide "switch off screens" hot key is exactly the safety/security reason - it's better to lock the computer, than just switch off screens, as a general habit.

Crear acceso directo en el escritorio pegar powershell.exe -Command "(Add-Type '[DllImport("user32.dll")]public static extern int SendMessage(int hWnd,int hMsg,int wParam,int lParam);' -Name a -Pas)::SendMessage(-1,0x0112,0xF170,2)" ponerle un nombre y cambiar el icono si se quiere.

Hi, I am Dave, I will help you with this.

There is no available shortcut to turn off the screens in Windows, but when you use Win + L to lock the device, all processes should continue to run, locking the PC does not suspend processes in Windows.