On a Windows 8-based or a Windows Server 2012-based computer, a notification from the notification area can freeze if the mouse pointer moves across the notification in a certain way.
Note When this issue occurs, both the option and close buttons on the notification become disabled, and the notification does not respond to mouse clicks.
To resolve this issue, install the Windows 8 and Windows Server 2012 update rollup 2836988. 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:
2836988 Windows 8 and Windows Server 2012 update rollup: May 2013
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.