Closing Syncservicesagent
How I was able to close syncservicesagent (SSA) to allow an Outlook Update to proceed:
click on the APPLE logo, top left
Force Quit
Initiate Force Quit - Note: Finder will not quit
Open Outlook
Click on HELP in tool bar
click on Check for Updates
Start the update process
When the need to close open programs pop up, close all, including SSA.
This will allow SSA to close for install of the update.
It worked for me on 11.24.14
Spikestor