This is one of those "so I don't forget where I found it" posts. So how many people have seen this dialog?
Normally I'm not ready to reboot right after I install updates, so I click Restart Later. Easy enough, right? Well it would be if it didn't pop up again 10 minutes later. Then 10 minutes later. Then 10 minutes later. Then 10 minutes later. Then 10 minutes later.
Anyway, I found this fix the other day and thought I'd link it so I could find it again in the future.