I just reset the computer to factory settings and wiped out all the contents of HDDs.
It automatically restarted and opened "Region and language" screen.
What is the proper way to shut it down at this point?
I know it sounds as a dumb question, but there are no other buttons on the screen.
Thanks!
UPDATE
I do know I can turn off the computer by holding the Power button, but I'm not 100% sure that this is the intended way to do so.
I need to return the PC and it should be in the same condition as when it was bought.