Had an odd thing happen a few days ago and thought I would run it by everyone here to see what you think. I have a windows 7 computer that I do most of my work on or do gaming on.I have windows auto-updates turned off. I was working on something and and I noticed the system was getting very sluggish and then finally unresponsive. So I decided to close everything and restart the system. When it started to shut down, the windows update screen popped up and said it was installing an update. I immediately unplugged the internet and sat and watched it. It shut down and restarted without issue. It then completed the update. I then decided to make sure everything was backed up onto an external HD before I got back online, in case I had been a victim of the win 10 forced update issue. Got everything backed up and then got back online and everything was fine. I ran Malwarebytes to see if maybe it was some kind of infection, but nothing turned up. I checked the windows update option and it had been changed somehow, so I turned it off. I also checked the installed updates and nothing is showing up for that date - 3/28/16.
Has anyone experienced something like this?
What would explain the auto-update feature being turned on when I had not turned it on?
Any idea what happened in this case?