This worked for me.
Windows Start Button" >> Control Panel >> Hardware and Sound >> Device Manager >> IEEE1394 Bus host controller (expand) >> double click "VIA 1394 OHCI Compliant Host Controller" (this could be different on your machine) >> Click on "Power Management" tab >> Check the box "Allow the computer to turn off this device to save power" >> click "OK".

Now your computer will shut down normally from here on out 

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