What you want to do is go to the registry and change a couple values. Open the registry and locate
\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
the value of ClearPageFile at Shutdown to a 0 IF the value is 1. If the value is 1, it will take longer for your computer
to shutdown..this fix cured it all for me.
I also did this :
Highlight the value WaitToKillServiceTimeout
Change this value to 1000.