Yesterday, Thursday, a date which will live in infamy, Microsoft unleashed patches for five versions of Windows. They were supposed to fix the widely reported bug in all of the mainstream October Windows security patches that gave rise to a bogus “Unexpected error from external database driver” message.
It’s too early to assess all of the damage, but reports from many corners say installing these new patches brings back old, unpatched versions of many files. If you installed one of the patches from yesterday, best to uninstall it. Now.