Manually editing the freeldr.ini after USB-installation worked easily. Thanks. I tried connecting a mouse, this worked fine several times. Unplugging the mouse is a different story, each time the system got stuck. In serial debug console: (../ntoskrnl/mm/ARM3/sysldr.c:176) Loading: \SystemRoot\Syste...

hi the USB keyboard/mouse works like a charm.
Installing the ISO from an USB stick also works, but the bootup fails: "Opening hive fails"
Computer: Dell Optiplex 755.