Laptop Won't Power Off

[Petra [L]]

Hello,

I have a brand new PC,
copied Windows 11 with WinToUSB 9.9 to an external SSD,
booted the PC with it,
and it works.

BUT when I shut down the PC,
Windows closes,
the PC stays on, the fan runs...

It's the same problem that rscosworth described—
does anyone know a solution?

Thanks,
Petra.