I have a Windows 7 laptop with two seemingly related issues. First, when I turn the machine on, it reboots into Startup Repair before I can log into Windows. After it runs, Windows loads normally. The full sequence can be seen here, including the Startup Repair diagnosis and repair log (14:00). I would paste the log if possible, but it runs outside of Windows.
The second issue is that my security monthly quality rollup Windows update is failing. Here is the history, which shows that the August rollup has failed multiple times. The July rollup, by contrast, was successful.
One course of action that has been recommended to me based on the Startup Repair diagnosis and repair log is to rebuild the BCD by following these instructions. This would be based on the idea that the Startup Repair bug is primary, perhaps causing the Windows update bug. I wonder if the reverse causal order is more likely, however, since Startup Repair only shows up when the update icon is present on the Shut down button (which is generally every day, but seems to be avoidable by not connecting to the Internet).
Am I correct that the Windows update bug is causing the Startup Repair bug, not vice-versa, and that rebuilding the BCD would thus be irrelevant? If so, how can I fix the Windows update bug? Can I just wait for September's quality rollup, or will it likely fail until August's succeeds?
Microsoft Security Essentials and chkdsk on the C drive both come back healthy. The Windows update error code is 80242016.