i was 2 or 3 days late when i updated cause notification doesn't work, what should tell me when updates are available, it was turned on, so check myself time to time, scheduling has been bugged to long time, i set it to awry Monday 19:00, but it does after 19 or 20 sometimes even 21 & new this, i'm lost of words
i had Update for Windows 8.1 for x64-based Systems (KB3161102) before that all, at morning, evening i updated avast, its just as additional info for avast team to investigate, maybe it caused the conflict, but ofc before last update i have had a lot of win updates, so the conflict may alredy been W8 long time, the time Avast gets disabled for a moment after update & won't let it start again