I'm new to this system, so I been using Ubuntu 16.04 TLS 64 bits a few days.
First, I did a fresh install of Windows 10 but I have the "black screen" issue on booting after the grub, I had to make a new installation but with the "apci=off" mode I think.
Then I could boot normally, but now I can't completely turn off the PC because when I click on Shutdown the desktop shut down but it keeps on Ubuntu Logo... to turn off I have to press the power button on the laptop and then shut down instantly.
I think it's not a driver issue because I have selected the non-restricted drivers for use.
When I press the Escape key the last line it's something like "Restart Held".