De Centro de script :
I accidentally set PowerShell to full screen. Is there any way to get it out of that mode?
You can right-click on the icon in the left-hand corner of the PowerShell window, choose properties, and then configure the window to look any way you want it to look.
Ou você pode tentar "Alt-ENTER" no teclado, que alterna entre os modos de tela inteira e tela não cheia.