Q&A for How to Remotely Shutdown a Computer

On the remote computer, run command prompt, then enter: "net user administrator /active:yes without the quotation marks.

You need to make sure you have administrator access on both computers to do this, otherwise it will deny you access to administrator tools.

You can use cmd (command prompt on windows) to remotely shutdown computers on the same network. Step 1 - open cmd as an admin by searching it up in the start menu, or by hitting Win+R and typing cmd. Step 2 - Type "shutdown /i" (no quotes). Step 3 - Press "add" on the top left corner of the popup, and then type in the IP address or name of the computer you want to remotely shut down.

Use the WiFi name.

This works at least from Windows 98 to Windows 10. There is a small possibility it goes farther back.

Make sure you have an internet connection and a functional and correct IP address.

Just restart your computer and try again. If it doesn't work, try using another computer.

Your computer is corrupted.

Make sure all background apps are shut down. Stuff like Skype and other notification apps will keep running and prevent Windows 10 from shutting down even if you press the "X" button.