You didn't say whether it hangs on shutdown or restarts instead of shutting down. In any event this may help click here
If it is the "restarting" problem, a workaround is to log off, then shut down.
Alienware 17 R4 2017 review
These brilliant Lego posters show just what children's imaginations are capable of
Mac power user tips and hidden tricks
Comment réinitialiser votre PC, ordinateur portable ou tablette Windows ?