Hi Sir Kal,
Windows Update was set to notify me when updates are there. Setting the active hours unfortunately doesn't help much, as I cannot set it to "24 hours". I don't want to disable an automatic reboot for updates just for a specific time, I want to disable automatic reboots for updates period. I don't mind updates, but I want to decide when Windows installs and updates and reboots, that is all. It is my computer, I do not want Windows to decide by itself it can reboot, no matter what time consuming tasks that are running overnight get interrupted and thrown out.