Where did Safe Mode go in Windows 10 1511 ? Hitting shift key doen't bringg up any options to restart pc, etc. Also there isn't a power icon on the login screen anymore.
If you do hold down shift while accessing the Start Menu, going to Power -> Restart, Windows 10 should still bring you into Advanced startup (Recovery mode). This will let you get into Safe Mode.
You can also boot into it using a Command Line (does not require admin):
Open Command Prompt
Windows Key +R (or Search) -> cmd.exe
You can create a shortcut to do this with a .bat (essentially a text file with command with the .bat extension instead of .txt)