I noticed yesterday that Windows Update has failed since 10 September 2012 with Error 80072ee2.
I am running Norton 360 Version 20.1.1.2 on Windows 7 64 bit.
I have tried Microsoft Fix it and I have also tried running Liveupdate manually until there are no more updates to run. I have also run the automatic troubleshooter on the Microsoft Support Website and the Norton Autofix in the Support section. All these attempts have failed to correct the issue.
The only way I can get Windows update to work is to disable the Firewall and then manually run Windows Update. This works perfectly.
I use Norton Firewall and it is this one which I disabled while I ran Windows Update. The Firewall has not been modified in anyway from the default setup when 360 was loaded/ upgraded.