@Russ Thank you.
So this what i have. A mini PC running detection for my darts setup. Then another mini PC running the funky stuff for the darts setup and a secondary monitor. The only reason i am doing this is because i cannot solder a second external power button onto the second pc. And it will be hidden so not easy to access. And the detection pc is running on Ubuntu. Dont know how much of an issue that will be if i wanted to use it too start the second pc.
And all on WIFI

@Jhon-Piñeres
The answer is probably found elsewhere since you asked your question, but because this was the first thread i found i think i post my solution here:

Command for shutting down:
shutdown /s /t 120

I choose 2 Minutes because thats the a longer time i need to leave but so normaly enough time to stop if i forgot something.

Off Command:
shutdown /a

Now i can tell my alexa to shut down my pc, by switching on shutdown, but i have also 2 minutes to cancel the shutdown by telling alexa to turn off shutdown.

Thanks @Xander .

@Russ There has to be a way. Many systems, like VNC for example, use this feature.

@Carlos-Junior, you could create a script with two commands in it like this:

taskkill /f /fi "USERNAME eq %USERNAME%" /fi "WINDOWTITLE ne" shutdown /s /f /t 0

Then your command would run that script with a command like this:

c:\scripts\close_all_shutdown.bat

If you don't want to create a script, you can generally run multiple commands with one command line by separating the commands with && like this:

taskkill /f /fi "USERNAME eq %USERNAME%" /fi "WINDOWTITLE ne" && shutdown /s /f /t 0

@Diego-Ulises-Pérez-Ruiz, maybe you need to specify the full path to nircmd.exe in your command, like c:\tools\nircmd.exe ...

Also, by manually, I assume you mean when you run it manually from the command line it works. What if you run it manually via TRIGGERcmd using the green Trigger button on the website, or from the green Play arrow in the GUI Editor ? We should make sure those work before attempting Alexa.

@Oliver-R Thanks a lot

@Floor_kicker Thank you very much for helping.

@Giuseppe-Sbirziola , I got your direct message. I'm glad that worked.

@Rafael-Estevam, what you say to Alexa will make more sense if you make the Voice field just computer instead of turn off computer.

The formula is, "Alexa, turn on/off [voice word]."

That's assuming you're using the TRIGGERcmd Smart Home skill.

In this example, I can say

"Alexa, turn on calculator." to open it.
"Alexa, turn off calculator." to close it.

7d94e408-a352-4c03-b195-3c512a638539-image.png

@Russ bet man thank you so much for all of your help 🙂 im new to this coding stuff its super weird to me, Im definitely gonna learn alot from being in this community lol