I just noticed that there was a new update (ver. 5.4.0.0), which I installed via the About page. The latest version was updated automatically on my laptop, but did not update automatically on my desktop.
I've checked the settings window, but didn't see where I could enable or disable automatic updating.
Why would Patch My PC update itself automatically on one PC but not on another PC, even though both are configured with identical settings?
See attached diagnostic file.
I just remembered to check Task Scheduler to see when Patch My PC - Self Updater kicks off. I saw that it's scheduled to start at 7 pm daily, with no repeat.
My PC is scheduled to wake-up from hibernation also at 7 pm, so I'm thinking that explains why Patch My PC doesn't self update on that PC - it's not quite awake when the self updater kicks off. So I've changed my PC's wake-up time to 6:45 pm daily and will wait to see if that resolves it.