There are no prerequisites for installing this security update.
You may have to restart the computer after you install this security update.
In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, a message is displayed that advises you to restart.
To help reduce the possibility that a restart will be required, stop all affected services and close all applications that may use the affected files before you install the security update. For more information about the reasons why you may be prompted to restart, see the following Microsoft Knowledge Base:
887012 Why you may be prompted to restart your computer after you install a security update on a Windows-based computer
Security update replacement information
This security update replaces the following security update:
2910228 MS13-100: Description of the security update for Office Web Apps Server 2013: December 10, 2013
This security update cannot be removed.
For a list of the files that are provided in this update 2863879, see the following: