My workaround was to reinstall windows, keeping my documents and settings. This procedure is simple to undertake, as it realigns the hard drive recovery partition in which the update fault lies.
It is not worth all that headache for a Security Update that should not have failed to begin with. I have done reinstalls several times and it is not fun. It can sit in my update queue until MS
fixes "their " problem and grow digital cobwebs on it.
it failed on my fresh install.