This is easy:
*Boot into Windows, hold shift and restart (keep holding shift)
*A windows boot menu (not BIOS) shows up (I failed the first time so try again if you can see it)
*Select the USB device and boot
With Ubuntu 16.04 (Try before install)
*Wifi works (I connected 5GHz hotspot)
*Touch works
*Audio doesn’t seem to work
*Screen is in portrait mode
On Ubuntu 18.04 (Try before install)
As 16.04 apart from that the screen is upside down and I also tested that Bluetooth can search for devices.