At 7:20 PM EST today, the system automatically started the Windows Update process and by 7:30 PM had finished installing 3 updates. This was outside the set active hours. However, the end time had been changed by some entity other than me from 11 PM to 5 PM. Guess I need to check the update settings more often. The cumulative update, an Adobe Flash update, and the Malicious Software Removal Tool were installed. Build 15063.540. All is well, so far.