I had the same problem after the upgrading to windows 10.
This worked for me.
1> Right click battery icon in the lower right corner.
2> Select power options.
3> Left click on "Choose What The Power Button Does"
4> left click "Change settings that are currently unavailable"
5> Scroll to the bottom and under "Shutdown Settings"
UNCHECK Both the "Turn on fast startup" & the "Sleep" boxes
6> click the "Save changes" button and close the power options window