Ok, since I have Windows 8 couple of months, I would like to share some things with you.
First of all, it took me some time to find out where shut down, restart or log off is…
Log off (sign out) or switch user
On Start screen / Metro screen, right click on user: 
Shut down, restart and sleep
Open Charms (Win Key+C) then settings 
then click Power and Shut Down or Restart or Sleep 
Quick access menu
right click on the left bottom corner
Get list of all apps
press Win Key+Q, or go to Start/Metro right click on empty space and in the right bottom corner select All apps 
Logon to Desktop not Start/Metro
Ok, first of all find scheduler, then Create basic Task, and on every logon start explorer. 
Click finish, restar and test it out.
Good Luck
