Symptoms
Assume that a Windows 8.1-based computer has the fast startup feature enabled. When you right-click the Start hint and then select the Shut down option to shut down the computer, the shutdown time is longer than when you shut down the computer by using the new Windows UI. Additionally, the system will take much longer to start the next time that you start the computer.
Cause
When you select the Shut down option from the right-click context menu on the Start hint, the system will do a complete shutdown even though the fast startup feature is enabled. However, when you shut down the computer by using the new Windows UI, the system will enter a hybrid sleep state.
Resolution
Update information
To resolve this issue, install update rollup 2919394. For more information about how to obtain this update rollup package, click the following article number to go to the article in the Microsoft Knowledge Base:
2919394 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: February 2014
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.