Updates not possible on Office for Mac 2011 due to: unable to quit running programs

The advice given by Microsoft does not work and is totally useless. I have been trying to run Microsoft AutoUpdate to install the automatically downloaded update to 14.2.4 for my Office for Mac on my Mac-Book Air 2011 running OS.X Mountain Lion. My Office programs latest updates are 14.2.3.

When you try to run AutoUpdate Installer it wants me to Quit Microsoft Database Daemon and SyncServices Agent so I followed the advice given on the Answers on Office for Mac pages about using Activity Monitor but when I follow the resolution using the Activity Monitor as soon as the applications are given the instruction to Quit or Force Quit they just start up again so there is no way of installing the update.

Is there any other way of switching them off, e.g. at StartUp so the Updates can be installed?

So currently I can not install any updates to the Office software including ones which involve Security issues. This is not good enough. Please advise solution?

Why have Microsoft not identified and resolved this issue already? It must affect more than just my Mac.