I am just adding this this thread, since Microsoft seems to have totally messed up wua .. current
Windows Update Agent 7.6.7600.320 is broken, this needs to be fixed now, lot of people are going to be hanging out in the wind on this one
of note, this is from a fresh install, only sp1 is installed on win7x64 .. this patches installed without permission on my end
windows update agent 7.6.7600.320
definition update for windows defender
update for windows kb958488
kb2685811
kb2505454
this is as far as the update process got after sp1 was installed, since I see wua767600.320 is not showing up in Microsoft search for this update...
this is the log entry that is causing the issue directly, not sure if there is anything upstream that is messing things up
-08-28 03:40:45:108 336 bb8 Misc WARNING: Digital Signatures on file C:\Windows\SoftwareDistribution\SelfUpdate\wsus3setup.cab are not trusted: Error 0x80070002
2014-08-28 03:40:45:170 336 bb8 Setup WARNING: SelfUpdate check failed to download package information, error = 0x80246002
2014-08-28 03:40:45:170 336 bb8 Setup FATAL: SelfUpdate check failed, err = 0x80246002
2014-08-28 03:40:45:170 336 bb8 Agent * WARNING: Skipping scan, self-update check returned 0x80246002
2014-08-28 03:40:45:170 336 bb8 Agent * WARNING: Exit code = 0x80246002