Elmer, not sure if this will make a difference, and perhaps you already do it, but I have shortcuts on my desktop (one of which is Shutdown). Right click an empty space on the desktop and select New, Shortcut. In the box that appears type, or cut and paste:
C:\Windows\System32\shutdown.exe -s -t 00
The next box allows you to name the Shortcut. Click ok and there it is:
Link Removed
The other Shortcuts are as follows:
Restart - C:\Windows\System32\shutdown.exe -r -t 00
Sleep - C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState 0,1,0
Logoff - C:\Windows\System32\logoff.exe
I hope these help someone, even if they do not help you.