So, after rebuilding my system twice and getting my 7Ultimate box up and running, today I get an announcement that 19 updates are ready. Fine. I uncheck SP1 and try to update the rest of the innocent x64 updates. Bad decision. They failed, Windows would not reboot (failed to start, failed to shut down) took 20 minutes for "repair windows" to decide it could not fix my system. As expected, shutting down and just restarting was fine except the updates did not work. By process of elimination I singled out Only the x64 updates are failing. I see Event ID 20 many times. I see dozens of different messages " failed to install the following update with error 0x80070643" and 0x8007012 (pick your number, they keep showing up) and searching Microsoft yields little. (no results) So now I am reaching out to the real professionals who deal with this, as Microsoft is not forthcoming. Any suggestions will be gladly accepted.