It's a soft reset and force the system (firmware) to reload itself ...

fptw.exe -greset (soft system reset)

Plutomaniac said :

A reset is a reset, immediate shutdown of the system that is.
In general terminology, soft reset means no settings lost whereas hard is the opposite.
FPT performs a soft reset as no settings are lost.
The naming is correct and the behavior as expected.
Besides, there is documentation for FPT and all other Intel tools found at the ME System Tools packages I upload.
These are uploaded for a reason.

It's equivalent to shutdown (Linux and Windows) ...

Go to the Start menu

Type cmd in the Search field , Press Enter, From an open command prompt window :

type shutdown, followed by the option you wish to execute.

To shut down your computer, type shutdown /s

To restart your computer, type shutdown /r

To log off your computer type shutdown /l

For a complete list of options type shutdown /?

After typing your chosen option, press Enter.

The computer will execute your desired task ...

So use "shutdown 0" to stop immediately the pc

https://github.com/LongSoft/FTK/blob/master/DOS/poweroff.bat

Power off bat command by Nikolaj Schlej a.k.a. CodeRush ...

@echo off
fpt -greset

Regards